This document discusses iron deficiency anemia, including its causes, signs and symptoms, diagnostic tests, and treatment options. Key points include:
- Iron deficiency anemia results from low iron levels, reducing oxygen-carrying capacity in the blood and causing tissue hypoxia.
- It has various causes including low dietary iron intake, reduced absorption, blood loss, and increased requirements during growth and pregnancy.
- Signs include fatigue, paleness, and nutritional deficiencies affecting nails, tongue, and lips. Diagnostic tests include low iron saturation and ferritin levels on blood tests.
- Treatment involves oral or intravenous iron supplementation, with adjuvants like vitamin C to aid absorption. Refractory cases may require alternative oral
Iron deficiency anemia is caused by a lack of iron in the body. Common symptoms include fatigue, palpitations, tinnitus, and headaches. Diagnosis involves blood tests showing low iron levels and microcytic, hypochromic red blood cells. Treatment depends on the severity, and involves oral or intravenous iron supplements to replenish iron stores over 6-12 months. Parenteral iron is used for severe cases or those unable to tolerate oral iron.
An 18-year-old female presented with symptoms of iron deficiency anemia including weakness, lethargy, and excessive bleeding during menstruation. On examination, she had pale skin and nail beds, swollen tongue, and tachycardia. Blood tests confirmed low hemoglobin, hematocrit, and iron levels. She was diagnosed with iron deficiency anemia based on her symptoms, physical exam findings, and blood test results. Treatment involved oral iron supplementation or parenteral iron therapy depending on severity. The goal of treatment was to raise hemoglobin levels and replenish iron stores.
Iron is an essential mineral that is distributed throughout the body and is important for oxygen transport and cellular metabolism. Iron deficiency develops when requirements exceed supply and leads to iron deficient erythropoiesis and eventually iron deficiency anemia. It is one of the most common nutritional deficiencies worldwide, affecting toddlers, adolescent girls, pregnant women, and some minority groups. Treatment involves oral or parenteral iron supplementation depending on severity, with the goal of replenishing iron stores and repairing hemoglobin deficits.
This document discusses iron metabolism and iron deficiency. It begins by outlining how iron is essential for many metabolic processes and exists in both ferric and ferrous states. It then discusses iron transport and storage in the body, as well as iron absorption, distribution, and regulation. The document also covers the causes, pathogenesis, morphology, diagnosis of iron deficiency and the role of hepcidin in various iron-related diseases.
Iron deficiency anemia is a common global health problem affecting 30% of the population. It causes decreased work productivity and increases maternal, child, and infant mortality. Good dietary sources of iron include liver, oats, legumes, and cashew nuts. Iron deficiency can be treated with oral iron supplements taken for 8 weeks, while severe cases may require intravenous iron or blood transfusions. Prevention strategies include iron fortification of infant formula and treating iron deficiency in at-risk groups like adolescent females.
Iron deficiency anemia (IDA) results from a multi-step process where iron stores become depleted due to blood loss or insufficient dietary iron intake. As iron levels decrease, changes occur in red blood cell production leading to microcytic hypochromic anemia. The body attempts to compensate for iron loss by increasing iron absorption, but this is insufficient to prevent a net iron loss over time. Without treatment, prolonged iron deficiency will eventually cause the hematologic and clinical manifestations of anemia.
This document discusses iron deficiency anemia, including its causes, signs and symptoms, diagnostic tests, and differential diagnosis. It notes that iron deficiency anemia is the most common cause of anemia and results from absent or decreased iron stores combined with low serum ferritin levels. The document outlines how iron is absorbed, transported, and stored in the body. It also lists common signs of iron deficiency anemia such as fatigue, angular stomatitis, and nail changes. Diagnostic tests discussed include complete blood count, serum iron, total iron binding capacity, serum ferritin, and bone marrow examination. Thalassemia, lead poisoning, and anemia of chronic disease are mentioned as conditions in the differential diagnosis.
Iron deficiency anemia is the most common nutritional disorder worldwide caused by inadequate iron intake or excessive iron loss. It develops in stages from depletion of iron stores to microcytic hypochromic anemia. Laboratory findings include low hemoglobin, serum ferritin and iron levels, as well as high TIBC. Peripheral smear shows microcytic hypochromic red blood cells. Bone marrow is hypercellular with iron deficiency and microcytic normoblastic erythropoiesis. Treatment involves oral or parenteral iron supplementation.
Iron deficiency anemia is caused by a lack of iron in the body. Common symptoms include fatigue, palpitations, tinnitus, and headaches. Diagnosis involves blood tests showing low iron levels and microcytic, hypochromic red blood cells. Treatment depends on the severity, and involves oral or intravenous iron supplements to replenish iron stores over 6-12 months. Parenteral iron is used for severe cases or those unable to tolerate oral iron.
An 18-year-old female presented with symptoms of iron deficiency anemia including weakness, lethargy, and excessive bleeding during menstruation. On examination, she had pale skin and nail beds, swollen tongue, and tachycardia. Blood tests confirmed low hemoglobin, hematocrit, and iron levels. She was diagnosed with iron deficiency anemia based on her symptoms, physical exam findings, and blood test results. Treatment involved oral iron supplementation or parenteral iron therapy depending on severity. The goal of treatment was to raise hemoglobin levels and replenish iron stores.
Iron is an essential mineral that is distributed throughout the body and is important for oxygen transport and cellular metabolism. Iron deficiency develops when requirements exceed supply and leads to iron deficient erythropoiesis and eventually iron deficiency anemia. It is one of the most common nutritional deficiencies worldwide, affecting toddlers, adolescent girls, pregnant women, and some minority groups. Treatment involves oral or parenteral iron supplementation depending on severity, with the goal of replenishing iron stores and repairing hemoglobin deficits.
This document discusses iron metabolism and iron deficiency. It begins by outlining how iron is essential for many metabolic processes and exists in both ferric and ferrous states. It then discusses iron transport and storage in the body, as well as iron absorption, distribution, and regulation. The document also covers the causes, pathogenesis, morphology, diagnosis of iron deficiency and the role of hepcidin in various iron-related diseases.
Iron deficiency anemia is a common global health problem affecting 30% of the population. It causes decreased work productivity and increases maternal, child, and infant mortality. Good dietary sources of iron include liver, oats, legumes, and cashew nuts. Iron deficiency can be treated with oral iron supplements taken for 8 weeks, while severe cases may require intravenous iron or blood transfusions. Prevention strategies include iron fortification of infant formula and treating iron deficiency in at-risk groups like adolescent females.
Iron deficiency anemia (IDA) results from a multi-step process where iron stores become depleted due to blood loss or insufficient dietary iron intake. As iron levels decrease, changes occur in red blood cell production leading to microcytic hypochromic anemia. The body attempts to compensate for iron loss by increasing iron absorption, but this is insufficient to prevent a net iron loss over time. Without treatment, prolonged iron deficiency will eventually cause the hematologic and clinical manifestations of anemia.
This document discusses iron deficiency anemia, including its causes, signs and symptoms, diagnostic tests, and differential diagnosis. It notes that iron deficiency anemia is the most common cause of anemia and results from absent or decreased iron stores combined with low serum ferritin levels. The document outlines how iron is absorbed, transported, and stored in the body. It also lists common signs of iron deficiency anemia such as fatigue, angular stomatitis, and nail changes. Diagnostic tests discussed include complete blood count, serum iron, total iron binding capacity, serum ferritin, and bone marrow examination. Thalassemia, lead poisoning, and anemia of chronic disease are mentioned as conditions in the differential diagnosis.
Iron deficiency anemia is the most common nutritional disorder worldwide caused by inadequate iron intake or excessive iron loss. It develops in stages from depletion of iron stores to microcytic hypochromic anemia. Laboratory findings include low hemoglobin, serum ferritin and iron levels, as well as high TIBC. Peripheral smear shows microcytic hypochromic red blood cells. Bone marrow is hypercellular with iron deficiency and microcytic normoblastic erythropoiesis. Treatment involves oral or parenteral iron supplementation.
Iron metabolism and management of iron overload by m.d. mainaKesho Conference
1) Iron is an essential element stored in the body primarily in hemoglobin, myoglobin, and ferritin or hemosiderin. Iron overload occurs when intake exceeds excretion and storage limits are exceeded.
2) Iron overload can damage organs by producing reactive oxygen species through non-transferrin bound iron. The liver and heart are particularly susceptible to iron deposition and injury.
3) Chelation therapy is the primary treatment for iron overload, targeting non-transferrin bound iron to prevent end organ damage. Oral and parenteral agents are available but require strict adherence for effectiveness.
G6PD deficiency is a defect in the G6PD enzyme, which provides protection against oxidative stress in red blood cells. It is an X-linked inherited condition, though female heterozygotes have some protection against malaria. Those with G6PD deficiency experience hemolytic anemia during times of oxidative stress caused by factors like infections, medications, or foods like fava beans. The deficiency results in inadequate levels of NADPH and glutathione, leaving red blood cells vulnerable to damage and hemolysis. Symptoms of the acute hemolytic anemia appear 24-48 hours after exposure to the triggering agent. Laboratory tests show signs of hemolysis and low G6PD enzyme activity. There is no cure or treatment other than
This document discusses hereditary spherocytosis (HS), an inherited disorder caused by defects in the red blood cell membrane skeleton. HS is characterized by spherical red blood cells that are less deformable and vulnerable to splenic sequestration and destruction. The defects are primarily in proteins like ankyrin, band 3, spectrin or band 4.2 that make up the membrane skeleton. This leads to a reduced red blood cell life span of 10-20 days instead of the normal 120 days. Clinical features include anemia, splenomegaly, jaundice, and hemolytic crises from infections. Diagnosis involves tests like peripheral smear, bone marrow examination, and osmotic fragility testing. Treatment
This document discusses anemia and iron deficiency anemia. It defines anemia as a low level of hemoglobin and classifies it as mild, moderate, or severe based on hemoglobin levels. Iron deficiency anemia is described as the most common type worldwide, caused by too little iron in the body. Symptoms, causes like blood loss or poor diet, diagnostic tests, and iron metabolism are summarized. Iron is stored in the liver and spleen and transported by transferrin to support erythropoiesis when needed.
This document discusses Fanconi syndrome and Fanconi anemia. Fanconi syndrome is a generalized proximal tubular defect in the kidneys causing defects in renal tubular reabsorption. It can be hereditary or acquired. Fanconi anemia is a rare inherited bone marrow failure syndrome associated with physical abnormalities and cancer predisposition. It is caused by mutations in genes involved in DNA repair. Supportive care includes transfusions and hematopoietic stem cell transplantation represents the only cure for hematological complications.
1. Iron deficiency anemia is a condition caused by low levels of iron in the body, which reduces the amount of oxygen carried by red blood cells.
2. Common causes of iron deficiency anemia include blood loss from menstruation or childbirth, a diet low in iron, and an inability to absorb enough iron from food.
3. Symptoms of iron deficiency anemia include fatigue, dizziness, pale skin, headaches, and brittle nails. Treatment involves oral or intravenous iron supplements to replace iron stores in the body.
The document discusses the high prevalence of anemia in India, especially among pregnant women. It notes that national anemia prevention programs have faced challenges in implementation, such as lack of screening and monitoring of iron supplementation. The document outlines opportunities in India's 11th five-year plan to address this issue through affordable interventions like iron fortification, screening pregnant women for anemia, and improving access to oral or injectable iron therapies through the primary healthcare system.
Hereditary spherocytosis is an inherited condition related to RBC destruction. its diagnosis is require to differentiate immune hemolytic anemia and G-6-P-D deficiency anemia
The document discusses iron deficiency anemia, including its definition, symptoms, causes, stages, diagnostic tests, and treatment options. Key points include:
- Iron deficiency anemia is defined as a reduction in hemoglobin concentration below the reference value.
- Symptoms include fatigue, dizziness, and headaches. Specific symptoms like glossitis or koilonychia may also occur.
- Causes include chronic bleeding, decreased iron intake, and increased iron requirements during growth or pregnancy.
- Diagnosis involves blood tests measuring iron levels, iron binding capacity, ferritin, and a bone marrow smear.
- Treatment options include oral or parenteral iron supplementation to restore iron stores over 6-9
Paraproteinemia refers to the presence of a monoclonal immunoglobulin or immunoglobulin light chain in the blood or urine resulting from a clonal proliferation of plasma cells or B-lymphocytes. Paraproteins can be identified through serum protein electrophoresis, immunofixation, and urine protein electrophoresis. The three major disorders associated with paraproteinemia are monoclonal gammopathy of undetermined significance (MGUS), multiple myeloma, and Waldenström's macroglobulinemia. Multiple myeloma treatment aims to attack the neoplasm with chemotherapy and stem cell transplantation, preserve bone health with bisphosphonates, and treat related problems like bone complications, anemia, infection,
Iron deficiency anemia (IDA) is common worldwide, affecting 2-20% of different populations in the US. IDA is caused by inadequate iron intake, impaired absorption, or physiologic losses. Screening for IDA is recommended for pregnant women and high-risk infants aged 6-12 months. A complete workup is needed when IDA is identified to determine the underlying cause. Serum ferritin level is the best initial diagnostic test, with levels below 25 ng/mL strongly indicating iron deficiency.
This document provides information about thalassemia and pregnancy. It defines thalassemia as a genetic blood disorder characterized by reduced or absent globin chain synthesis. It discusses the types and incidence of thalassemia worldwide and in India. It outlines the approach to diagnosis including various blood tests. It covers the management of thalassemia during pregnancy including preconception care, antenatal care, intrapartum care, postpartum care and complications. The goal is to prevent the birth of children with thalassemia major through genetic counseling and screening of potential parents.
Anemia is common in pregnancy, affecting 32-38% of pregnant women in Malaysia. Iron deficiency is the most common cause. During pregnancy, iron requirements increase substantially to support the growing fetus and placenta, but many women enter pregnancy with low iron stores. Untreated anemia can lead to complications during delivery like postpartum hemorrhage. Treatment involves oral or intravenous iron supplementation depending on severity, with the goals of restoring red blood cell and hemoglobin levels to normal and replenishing iron stores. Treating and preventing anemia in pregnancy can significantly improve maternal and child health outcomes.
This document discusses microcytic anemia and iron deficiency anemia. It defines anemia according to the World Health Organization and American Society of Hematology. It describes the causes, symptoms, and evaluation of microcytic anemia including complete blood count measures. Iron deficiency is the most common cause of microcytic anemia, which can result from blood loss, poor diet, or malabsorption. Treatment involves oral or intravenous iron replacement depending on the severity and cause of the anemia.
Iron deficiency anemia develops when iron stores are too low to support normal red blood cell production. It can be caused by inadequate dietary iron, impaired iron absorption, bleeding, or loss of body iron. Diagnosis involves a complete blood count showing microcytic, hypochromic anemia and low serum iron and ferritin levels. Treatment primarily involves oral iron supplementation, while parenteral iron or blood transfusions are reserved for more severe cases. The underlying cause also needs to be addressed to prevent recurrence.
G6PD deficiency is caused by mutations in the G6PD gene resulting in reduced activity of the G6PD enzyme. This enzyme is critical for generating NADPH which protects red blood cells from oxidative damage. Lack of G6PD activity leads to hemolysis of red blood cells during times of oxidative stress from infections, drugs, or foods. The condition is diagnosed through screening tests detecting NADPH production or dye reduction, and confirmed by quantitative enzyme assays. Management focuses on preventing hemolysis through treating infections promptly and avoiding oxidative triggers. G6PD deficiency provides some protection against malaria in endemic areas.
This document provides an overview of megaloblastic anemia, including its definition, causes, clinical features, investigations, treatment, and prognosis. Megaloblastic anemia is caused by impaired DNA synthesis and is characterized by megaloblastic erythropoiesis in the bone marrow. It can result from vitamin B12 or folate deficiency, inborn errors of metabolism, or other conditions. Clinical features include hematological abnormalities and neurological or gastrointestinal symptoms. Treatment involves vitamin B12 or folate supplementation through injections or orally. Early diagnosis and treatment usually results in a normal lifespan without complications, while delayed treatment can allow neurological damage.
Hemoglobin E beta-thalassemia is caused by coinheritance of the hemoglobin E structural variant and a beta-thalassemia mutation. It has wide clinical heterogeneity, ranging from asymptomatic to life-threatening. Factors influencing severity include the specific beta-thalassemia mutation, coinheritance of alpha-thalassemia, levels of fetal hemoglobin, amounts of abnormal hemoglobin E mRNA splicing, and environmental exposures like malaria. Treatment depends on symptoms and severity, with regular blood transfusions for more severe cases and options like hydroxyurea or bone marrow transplantation in some situations.
Iron homeostasis is tightly regulated in the body. Hepcidin acts as the master regulator of iron by inhibiting intestinal iron absorption and macrophage iron release. Disorders of iron overload occur when hepcidin production is insufficient, such as in hereditary hemochromatosis. The most common type is HFE hemochromatosis caused by mutations of the HFE gene. Treatment involves regular phlebotomy to reduce iron levels. Family screening is important given the hereditary nature of the disease.
This document summarizes iron metabolism. It discusses that iron is primarily stored in the blood, liver, bone marrow and muscles. The main iron-containing proteins are hemoglobin, myoglobin, and cytochromes. Iron absorption is regulated to maintain homeostasis, primarily through the mucosal block mechanism. Factors like iron form, ascorbic acid, and interfering substances can influence absorption. Iron deficiency is the most common nutritional disorder globally and manifests as anemia. Toxicity can result from excess iron accumulation in tissues.
Iron deficiency anemia and acute iron poisoning are discussed. Iron deficiency can result from inadequate dietary intake or absorption and causes microcytic hypochromic anemia. It is diagnosed based on blood tests and treated with oral or parental iron supplements. Acute iron poisoning mostly affects children and can cause serious toxicity if a large amount of iron is ingested, resulting in gastrointestinal, shock, organ dysfunction, and even death. Supportive care focuses on stabilizing vital functions and gastrointestinal decontamination if needed.
Iron is an essential trace element required for oxygen transport and many enzymatic processes. Women and children have higher iron requirements. Dietary sources like jaggery are rich in iron while milk is poor. Factors like calcium, phytates and oxalates inhibit iron absorption in the duodenum and jejunum, while vitamin C and cysteine enhance absorption. Iron is important for carrying oxygen via hemoglobin, acting as an enzyme cofactor, and supporting brain and cell functions. Iron deficiency anemia results from low intake or increased losses and is characterized by low hemoglobin and red blood cell changes. It is commonly seen in pregnant women and treated with oral or parenteral iron supplements.
Iron metabolism and management of iron overload by m.d. mainaKesho Conference
1) Iron is an essential element stored in the body primarily in hemoglobin, myoglobin, and ferritin or hemosiderin. Iron overload occurs when intake exceeds excretion and storage limits are exceeded.
2) Iron overload can damage organs by producing reactive oxygen species through non-transferrin bound iron. The liver and heart are particularly susceptible to iron deposition and injury.
3) Chelation therapy is the primary treatment for iron overload, targeting non-transferrin bound iron to prevent end organ damage. Oral and parenteral agents are available but require strict adherence for effectiveness.
G6PD deficiency is a defect in the G6PD enzyme, which provides protection against oxidative stress in red blood cells. It is an X-linked inherited condition, though female heterozygotes have some protection against malaria. Those with G6PD deficiency experience hemolytic anemia during times of oxidative stress caused by factors like infections, medications, or foods like fava beans. The deficiency results in inadequate levels of NADPH and glutathione, leaving red blood cells vulnerable to damage and hemolysis. Symptoms of the acute hemolytic anemia appear 24-48 hours after exposure to the triggering agent. Laboratory tests show signs of hemolysis and low G6PD enzyme activity. There is no cure or treatment other than
This document discusses hereditary spherocytosis (HS), an inherited disorder caused by defects in the red blood cell membrane skeleton. HS is characterized by spherical red blood cells that are less deformable and vulnerable to splenic sequestration and destruction. The defects are primarily in proteins like ankyrin, band 3, spectrin or band 4.2 that make up the membrane skeleton. This leads to a reduced red blood cell life span of 10-20 days instead of the normal 120 days. Clinical features include anemia, splenomegaly, jaundice, and hemolytic crises from infections. Diagnosis involves tests like peripheral smear, bone marrow examination, and osmotic fragility testing. Treatment
This document discusses anemia and iron deficiency anemia. It defines anemia as a low level of hemoglobin and classifies it as mild, moderate, or severe based on hemoglobin levels. Iron deficiency anemia is described as the most common type worldwide, caused by too little iron in the body. Symptoms, causes like blood loss or poor diet, diagnostic tests, and iron metabolism are summarized. Iron is stored in the liver and spleen and transported by transferrin to support erythropoiesis when needed.
This document discusses Fanconi syndrome and Fanconi anemia. Fanconi syndrome is a generalized proximal tubular defect in the kidneys causing defects in renal tubular reabsorption. It can be hereditary or acquired. Fanconi anemia is a rare inherited bone marrow failure syndrome associated with physical abnormalities and cancer predisposition. It is caused by mutations in genes involved in DNA repair. Supportive care includes transfusions and hematopoietic stem cell transplantation represents the only cure for hematological complications.
1. Iron deficiency anemia is a condition caused by low levels of iron in the body, which reduces the amount of oxygen carried by red blood cells.
2. Common causes of iron deficiency anemia include blood loss from menstruation or childbirth, a diet low in iron, and an inability to absorb enough iron from food.
3. Symptoms of iron deficiency anemia include fatigue, dizziness, pale skin, headaches, and brittle nails. Treatment involves oral or intravenous iron supplements to replace iron stores in the body.
The document discusses the high prevalence of anemia in India, especially among pregnant women. It notes that national anemia prevention programs have faced challenges in implementation, such as lack of screening and monitoring of iron supplementation. The document outlines opportunities in India's 11th five-year plan to address this issue through affordable interventions like iron fortification, screening pregnant women for anemia, and improving access to oral or injectable iron therapies through the primary healthcare system.
Hereditary spherocytosis is an inherited condition related to RBC destruction. its diagnosis is require to differentiate immune hemolytic anemia and G-6-P-D deficiency anemia
The document discusses iron deficiency anemia, including its definition, symptoms, causes, stages, diagnostic tests, and treatment options. Key points include:
- Iron deficiency anemia is defined as a reduction in hemoglobin concentration below the reference value.
- Symptoms include fatigue, dizziness, and headaches. Specific symptoms like glossitis or koilonychia may also occur.
- Causes include chronic bleeding, decreased iron intake, and increased iron requirements during growth or pregnancy.
- Diagnosis involves blood tests measuring iron levels, iron binding capacity, ferritin, and a bone marrow smear.
- Treatment options include oral or parenteral iron supplementation to restore iron stores over 6-9
Paraproteinemia refers to the presence of a monoclonal immunoglobulin or immunoglobulin light chain in the blood or urine resulting from a clonal proliferation of plasma cells or B-lymphocytes. Paraproteins can be identified through serum protein electrophoresis, immunofixation, and urine protein electrophoresis. The three major disorders associated with paraproteinemia are monoclonal gammopathy of undetermined significance (MGUS), multiple myeloma, and Waldenström's macroglobulinemia. Multiple myeloma treatment aims to attack the neoplasm with chemotherapy and stem cell transplantation, preserve bone health with bisphosphonates, and treat related problems like bone complications, anemia, infection,
Iron deficiency anemia (IDA) is common worldwide, affecting 2-20% of different populations in the US. IDA is caused by inadequate iron intake, impaired absorption, or physiologic losses. Screening for IDA is recommended for pregnant women and high-risk infants aged 6-12 months. A complete workup is needed when IDA is identified to determine the underlying cause. Serum ferritin level is the best initial diagnostic test, with levels below 25 ng/mL strongly indicating iron deficiency.
This document provides information about thalassemia and pregnancy. It defines thalassemia as a genetic blood disorder characterized by reduced or absent globin chain synthesis. It discusses the types and incidence of thalassemia worldwide and in India. It outlines the approach to diagnosis including various blood tests. It covers the management of thalassemia during pregnancy including preconception care, antenatal care, intrapartum care, postpartum care and complications. The goal is to prevent the birth of children with thalassemia major through genetic counseling and screening of potential parents.
Anemia is common in pregnancy, affecting 32-38% of pregnant women in Malaysia. Iron deficiency is the most common cause. During pregnancy, iron requirements increase substantially to support the growing fetus and placenta, but many women enter pregnancy with low iron stores. Untreated anemia can lead to complications during delivery like postpartum hemorrhage. Treatment involves oral or intravenous iron supplementation depending on severity, with the goals of restoring red blood cell and hemoglobin levels to normal and replenishing iron stores. Treating and preventing anemia in pregnancy can significantly improve maternal and child health outcomes.
This document discusses microcytic anemia and iron deficiency anemia. It defines anemia according to the World Health Organization and American Society of Hematology. It describes the causes, symptoms, and evaluation of microcytic anemia including complete blood count measures. Iron deficiency is the most common cause of microcytic anemia, which can result from blood loss, poor diet, or malabsorption. Treatment involves oral or intravenous iron replacement depending on the severity and cause of the anemia.
Iron deficiency anemia develops when iron stores are too low to support normal red blood cell production. It can be caused by inadequate dietary iron, impaired iron absorption, bleeding, or loss of body iron. Diagnosis involves a complete blood count showing microcytic, hypochromic anemia and low serum iron and ferritin levels. Treatment primarily involves oral iron supplementation, while parenteral iron or blood transfusions are reserved for more severe cases. The underlying cause also needs to be addressed to prevent recurrence.
G6PD deficiency is caused by mutations in the G6PD gene resulting in reduced activity of the G6PD enzyme. This enzyme is critical for generating NADPH which protects red blood cells from oxidative damage. Lack of G6PD activity leads to hemolysis of red blood cells during times of oxidative stress from infections, drugs, or foods. The condition is diagnosed through screening tests detecting NADPH production or dye reduction, and confirmed by quantitative enzyme assays. Management focuses on preventing hemolysis through treating infections promptly and avoiding oxidative triggers. G6PD deficiency provides some protection against malaria in endemic areas.
This document provides an overview of megaloblastic anemia, including its definition, causes, clinical features, investigations, treatment, and prognosis. Megaloblastic anemia is caused by impaired DNA synthesis and is characterized by megaloblastic erythropoiesis in the bone marrow. It can result from vitamin B12 or folate deficiency, inborn errors of metabolism, or other conditions. Clinical features include hematological abnormalities and neurological or gastrointestinal symptoms. Treatment involves vitamin B12 or folate supplementation through injections or orally. Early diagnosis and treatment usually results in a normal lifespan without complications, while delayed treatment can allow neurological damage.
Hemoglobin E beta-thalassemia is caused by coinheritance of the hemoglobin E structural variant and a beta-thalassemia mutation. It has wide clinical heterogeneity, ranging from asymptomatic to life-threatening. Factors influencing severity include the specific beta-thalassemia mutation, coinheritance of alpha-thalassemia, levels of fetal hemoglobin, amounts of abnormal hemoglobin E mRNA splicing, and environmental exposures like malaria. Treatment depends on symptoms and severity, with regular blood transfusions for more severe cases and options like hydroxyurea or bone marrow transplantation in some situations.
Iron homeostasis is tightly regulated in the body. Hepcidin acts as the master regulator of iron by inhibiting intestinal iron absorption and macrophage iron release. Disorders of iron overload occur when hepcidin production is insufficient, such as in hereditary hemochromatosis. The most common type is HFE hemochromatosis caused by mutations of the HFE gene. Treatment involves regular phlebotomy to reduce iron levels. Family screening is important given the hereditary nature of the disease.
This document summarizes iron metabolism. It discusses that iron is primarily stored in the blood, liver, bone marrow and muscles. The main iron-containing proteins are hemoglobin, myoglobin, and cytochromes. Iron absorption is regulated to maintain homeostasis, primarily through the mucosal block mechanism. Factors like iron form, ascorbic acid, and interfering substances can influence absorption. Iron deficiency is the most common nutritional disorder globally and manifests as anemia. Toxicity can result from excess iron accumulation in tissues.
Iron deficiency anemia and acute iron poisoning are discussed. Iron deficiency can result from inadequate dietary intake or absorption and causes microcytic hypochromic anemia. It is diagnosed based on blood tests and treated with oral or parental iron supplements. Acute iron poisoning mostly affects children and can cause serious toxicity if a large amount of iron is ingested, resulting in gastrointestinal, shock, organ dysfunction, and even death. Supportive care focuses on stabilizing vital functions and gastrointestinal decontamination if needed.
Iron is an essential trace element required for oxygen transport and many enzymatic processes. Women and children have higher iron requirements. Dietary sources like jaggery are rich in iron while milk is poor. Factors like calcium, phytates and oxalates inhibit iron absorption in the duodenum and jejunum, while vitamin C and cysteine enhance absorption. Iron is important for carrying oxygen via hemoglobin, acting as an enzyme cofactor, and supporting brain and cell functions. Iron deficiency anemia results from low intake or increased losses and is characterized by low hemoglobin and red blood cell changes. It is commonly seen in pregnant women and treated with oral or parenteral iron supplements.
This document provides information on iron deficiency anemia (IDA), including its global burden, pathophysiology, causes, clinical features, investigations, and management. Some key points:
- IDA is the most common cause of anemia globally, with over 50% of anemias due to iron deficiency. It accounts for 8.4 lakh deaths annually, most in Africa and Asia.
- IDA occurs when iron stores are decreased and total body iron is reduced. It develops in stages from initial iron deficiency without anemia to latent IDA to overt IDA.
- Causes of IDA include blood loss, inadequate dietary iron intake, malabsorption, increased demands in pregnancy/growth. Daily iron requirements vary from
Iron deficiency anemia is the most common form of anemia and develops over time due to insufficient iron intake or absorption to produce new red blood cells. Symptoms include fatigue, pale skin, dizziness, and shortness of breath. Treatment involves oral iron supplements like ferrous sulfate taken on an empty stomach, which can take 3-6 months to replenish iron stores. Parenteral iron is used for patients who cannot tolerate oral supplements or have malabsorption issues. Dietary sources of iron like meat, fish, and leafy greens can also help non-pharmacologically.
Iron deficiency anemia is the most common form of anemia and develops over time due to insufficient iron intake or absorption to produce new red blood cells. Symptoms include fatigue, pale skin, dizziness, and shortness of breath. Treatment involves oral iron supplements like ferrous sulfate taken on an empty stomach, which can take 3-6 months to replenish iron stores. Parenteral iron is used for patients who cannot tolerate oral supplements or have malabsorption issues. Dietary sources of iron like meat, fish, and leafy greens can also help non-pharmacologically.
Iron deficiency anemia (IDA) is the most common form of anemia worldwide. It can be caused by blood loss or impaired iron absorption. The body needs iron to produce hemoglobin for red blood cell production. Treatment involves treating the underlying cause and replenishing iron stores, usually with oral iron supplements. Parenteral iron may be used for patients unable to tolerate or absorb oral iron. Complications of iron overload include organ damage, so excess iron intake must be avoided.
- Iron is an essential trace element that is mainly present in blood, liver, bone marrow and muscles. It is required for hemoglobin, myoglobin and other protein synthesis.
- Iron deficiency anemia results from inadequate iron intake, absorption or increased losses and can be diagnosed based on low serum iron, ferritin and transferrin saturation along with microcytic hypochromic anemia.
- Treatment involves oral iron supplementation long-term or intravenous iron for severe cases. Blood transfusions are needed for acute blood loss.
Iron deficiency anemia is caused by a lack of iron needed to produce hemoglobin in red blood cells. It develops over time as iron stores are depleted. Symptoms include fatigue, pale skin, dizziness, and shortness of breath. It is usually treated with oral iron supplements like ferrous sulfate taken for 3-6 months to replenish iron stores. Parenteral iron can also be used intravenously for patients who cannot tolerate oral supplements or have hypersensitivity. An iron-rich diet also helps treatment and prevention.
Iron deficiency anemia is the most common form of anemia globally. It develops due to blood loss, poor diet, or impaired iron absorption. The patient presented has low red blood cell and hemoglobin levels, indicating iron deficiency anemia. Treatment involves oral or intravenous iron supplementation. Oral iron can fully treat most cases of iron deficiency anemia, but often requires 3-6 months for complete recovery. Intravenous iron is recommended when a faster recovery is needed, such as before surgery. Common side effects of oral iron include nausea, abdominal discomfort, and black stools.
This document discusses childhood anemia, including its definition, causes, signs and symptoms, diagnostic tests, treatment, and iron metabolism. Some key points:
- Anemia is defined as low red blood cell or hemoglobin levels. It poses health risks in children and is commonly caused by iron deficiency.
- Diagnosis involves blood tests showing microcytic, hypochromic anemia and low iron stores.
- Treatment consists of oral iron supplements initially, with parenteral options for severe cases. Absorption can be improved by vitamin C and hindered by certain foods.
Drug treatment of iron deficiency anaemiaNaser Tadvi
This document discusses iron deficiency anemia and its treatment. It defines anemia and identifies iron deficiency as a common cause. It describes how iron is used to form hemoglobin and the signs and symptoms of iron deficiency anemia. The document outlines dietary iron requirements and food sources of iron. It provides details on oral and parenteral iron therapy, including dosages, formulations, and potential adverse effects. It also discusses intravenous iron preparations and the use of desferrioxamine for acute iron poisoning.
Iron deficiency is common in Nepal and a major cause of anemia. Iron is essential as it is part of hemoglobin which carries oxygen in red blood cells and is also involved in energy production. Deficiency can cause anemia, fatigue, poor growth and cognitive delays in children. Those at higher risk include infants, young children, pregnant women, and those with poor nutrition. Treatment involves treating the underlying cause, oral iron supplementation, or intravenous iron for more severe cases. Prevention strategies include deworming, improving nutrition, and national programs promoting iron supplementation.
recent drugs in haematinics 2014 pharmacologyVishnu Priya
This document provides information on anemia, including definitions, classifications, causes, treatments, and adjunct therapies. It discusses the definition of anemia as a decrease in red blood cells or hemoglobin. Anemia is classified based on red blood cell morphology and underlying mechanisms. Common causes of anemia include blood loss, decreased red blood cell production, and increased red blood cell destruction. Treatments for anemia include oral and parenteral iron preparations as well as vitamin B12 and folic acid supplements. Adjuvant therapies that help with iron absorption like vitamin C are also discussed.
Iron deficiency anaemia (for v year mbbs)mona aziz
Iron Deficiency Anaemia is a widespread problem globally. It affects toddlers, women of childbearing age, and school-aged children. Iron is essential for oxygen transport, cell metabolism, and immune function. Causes of iron deficiency include low dietary iron intake, blood loss, pregnancy/lactation, and malabsorption. Symptoms include pallor, fatigue, and behavioral changes. Laboratory findings show low iron stores, serum iron and transferrin saturation. Treatment involves iron supplementation orally or parenterally, and treating the underlying cause. Uncorrected iron deficiency can lead to developmental delays in children.
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Iron defciency anemia and recent advances in management
1. Iron defciency anemia and
Recent advances in management
Chair person:- Dr Seetaram N K
Student:- Dr Md Juned
2. • Anemia is defined as reduction in total
circulating red cell mass below normal limit
• Anemia reduces the oxygen carrying capacity
of the blood leading to tissue hypoxia
• It is absolute when red cell mss decreases and
relative when plasma volume increases
4. Iron metabolism
• Dietary iron
• Absorbtion
• Transport
• Distribution
• Storage
• Physiologic regulation
5. • Iron is required by every cell in the body
• It has vital role in
1. Oxidative metabolism
2. Cellular growth and proliferation
3. O2 transport and storage
• Iron must be bound to protien
• Inorganic or ionic form is dangerous
6. • Iron exceeds the body capacity – toxicity
• Too littlte-- metabolic process inhibited
7. • Heme is an iron-chelated porphyrin ring that
functions as a prosthetic group (nonamino
acid component) of a protein protoporphyrin
IX,
• is composed of a flat tetrapyrrole ring with
ferrous iron inserted into the center.
10. IRON REQUIREMENTS
• Requirements are determined by obligatory
physiological losses and the needs imposed by
growth.
• men require only 13 mg/kg/day (~1 mg of iron),
• menstruating women ~21 mg/kg/day (~1.4 mg).
• In the last two trimesters of pregnancy, ~80
mg/kg/day (5–6 mg),
• infants have similar requirements due to their
rapid growth.
11. DIETARY IRON
• There are 2 types of iron in the diet; haem
iron and non-haem iron
• Haem iron is present in Hb containing animal
food like meat, liver & spleen
• Non-haem iron is obtained from cereals,
vegetables & beans
• Milk is a poor source of iron, hence breast-fed
babies need iron supplements
12. AVAILABILITY OF DIETARY IRON
• Foods high in iron (>5 mg/100 g) include
organ meats such as liver and heart, brewer’s
yeast, wheat germ, egg yolks, oysters, and
certain dried beans and fruits;
• foods low in iron (<1 mg/100 g) include milk
and milk products and most vegetables.
13. Iron absorption
• Food sources supply: 10 - 25 mg / day
• Absorbed in the brush border of the upper
small intestine
• Most dietary iron is nonheme form, <5%
bioavailability
• < 10% dietary iron is heme form, >25%
bioavailability
14. Iron absorption from food
Iron Absorption (% of dose)
0 5 10 15 20 25
Veal muscle
Hemoglobin
Fish muscle
Veal liver
Ferritin
Soy beans
Wheat
Lettuce
Corn
Black beans
Spinach
Rice
15. Factors affecting absorbtion
• Type of iron:- heme iron vs non heme iron
• Gastric acid:- promote absorbtion by reducing
from ferric to ferrous form
• Reducing agents:- ascorbate, succinate, SH
group of amino acid, Fe3+ to Fe2+
• Phosphorous diet:- decrease absorbtion
• Antacids :- decrease
16. • Iron with or after food :- decrease
• Pancreatic secretion:- decrease
• Iron deficiency:- increase
• Infections and GI surgeries:- decrease
25. Iron transport
• Transferrin – plasma iron transporter protein.
Carries less than 1% of total body iron
• Ferritin – intracellular storage of iron
• Hemosiderin – long term iron storage pool
26. Storage of iron
• Ferritin
– multi-subunit protein
– primarily intracellular
– some in plasma
• Hemosiderin
– insoluble form of
ferritin
– visible
microscopically
27. Iron stain of bone marrow
Iron Deficient Marrow
Prussian Blue Stain
Normal Marrow
Prussian Blue Stain
33. Signs and symptyms
• Pagophagia - craving ice
• Pica - craving of nonfood
substances
– e.g., dirt, clay, laundry
starch
• Glossitis - smooth tongue
• Restless Legs
• angular stomatitis -
cracking of corners of
mouth
• Koilonychia - thin, brittle,
spoon-shaped fingernails
34.
35. Koilonychia:- lack of iron structural stress during
the keratinisation process of nail formation,a
difference in the angle of the distal matrix in
comparision to the proxymal matrix , a lack of
oxygen to the matrix and atrophy of the
matrix, all which would affect the shape of the
nail plate
37. Tests for Iron Deficiency
• Peripheral blood smear
• Red cell indices (MCV, MCH)
• Serum ferritin
• Serum iron / transferrin = iron saturation
• Bone marrow iron stain (Prussian blue)
39. CONDITION SERUM
IRON
TIBC FERRITIN COMMENT
Iron deficiency ↓ ↑ ↓ Responsive to iron
Chronic
inflammation
↓ ↓ Unresponsive to iron
Thalassemia major ↑ N N
Reticulocytosis and
indirect
bilirubinemia
Lead poisoning N N N Basophilic stippling of
RBCs
Sideroblastic anemia ↑ N Ring sideroblasts in
marrow
41. Red cell distribution width
• RDW measures range of variation of red cell
volume
• Normal range is 11.5 to 14.5 %
• It is measure of anisocytosis
• Usually elevated in deficiency of Iron, Folate,
B12
• Usually normal in Hemoglobinopathy
44. Iron deficiency in inflammation and
CKD
Transferrin sats
%
Ferritin
Inflammation <20% <100
CKD <20% <100
ESRD <30% <500
45. Erythropoeitin
• Subcutaneous administration is preferred
because absorption is slower and the amount of
• drug reqItuired is reduced by 20–40%.
• Patients are started on doses of 80–120 U/kg of
epoetin alfa, given subcutaneously, 3 times/week.
• The most common side effect of epoetin alfa
therapy is aggravation of hypertension, which
occurs in 20–30%
46. Refractory Iron Deficiency Anemia
• Failure to respond to treatment at a dose of at
least 100 mg of elemental iron per day after 4 to
6 weeks of therapy
Causes
• H pylori
• Autoimmune gastritis
• Celiac disease
• Hereditary iron-refractory iron deficiency
syndrome (IRIDA)
47. treatment
• Carbonyl iron (elemental), heme-iron polypeptide
(extracted from porcine RBC), polysaccharide-iron
complex
• Ascorbic acid increases oral iron absorption but
dose is usually not in significant quantity to make
a difference
• Phytates (cereal grains), tannins (tea) and antacid
therapy inhibit oral iron absorption
48. • The duration of treatment is depends on the rate
of recovery of Hb and the desire to create iron
stores.
• Thus, an individual with an Hb of 5 g/dL may
achieve a normal Hb of 15 g/dL in about 50 days,
• whereas an individual with an Hb of 10 g/dL may
take only half that time.
• after 3–4 months of treatment, stores may
increase at a rate of not much more than 100
mg/month.
49. Adjuvants to Iron Therapy
• vitamin C, cobalt, copper, zinc and
manganese.
• Vitamin C may increase the iron absorption
• Copper is said to mobilise iron from storage,
• cobalt is claimed to stimulate erythropoietin
production.
50. Adverse reactions to oral iron
• colicky pain,
• nausea, vomiting,
• diarrhoea or constipation,
• and gastric distress in about 6 to 12% of
individuals
• Iron in liquid form:- blackening of teeth;
51. IRON POISONING
• Most common in children
• 1–2 g of iron may cause death,
• Signs and symptoms of severe poisoning may
occur within 30 minutes after ingestion or maybe
delayed for several hours.
• They include abdominal pain, diarrhea, or
vomiting of brown or bloody stomach contents
containing pills.
• drowsiness, hyperventilation due to acidosis, and
cardiovascular collapse.
52. • concentration of iron in plasma:- <63 mm (3.5
mg/L), the child is not in immediate danger.
However, vomiting should be induced when there
is iron in the stomach,
• x-ray to evaluate the number of radio-opaque
pills remaining in the small bowel.
• plasma concentration of iron exceeds the total
iron-binding capacity >63 mm; 3.5 mg/L),
deferoxamine should be administered.
• Shock, dehydration, and aci
53. • Acute Oral Iron Poisoning:
• (a) Milk and egg yolk mixture is administered to
bind the iron.
• (b) Desferrioxamine 1-2 g IM is administered.
• (c) Gastric lavage with water containing
desferrioxamine is given initially, followed by 5-
10g of the same in 100 ml of water being left in
the stomach to adsorb any more iron.
• If desferrioxamine is not available, calcium
disodium edetate 35-40 mg/kg may be used.
54. • (d)Early replacement of body fluids and
electrolytes using isotonic saline, correction of
metabolic acidosis and hypotension by using
ringer lactate and vasopressor agents,
• (f) Diazepam to control convulsions
55. • In shock:- the drug is administered by IV
infusion: 10-15 mg/kg/hour to a maximum of
80 mg/kg in 24 hours.
• Without shock:- dose of 1-2 g every 3-12
hours; maximum dose 6 g in 24hours.
56. • The average dose for the treatment of iron-
deficiency anemia is about 200 mg of iron/day
(2–3 mg/kg/day), given in three equal doses of
65 mg.
• while small children and infants can tolerate
relatively large doses of iron (e.g., 5 mg/kg).
• The dose used is a compromise between the
desired therapeutic action and the adverse
effects.
57. • For prevention of iron deficiency in pregnant
women:- 15–30 mg of iron/d are adequate to
meet the 3–6 mg daily requirement of the last
2 trimesters.
• For treatment of iron-deficiency anemia,
• a total dose of about 100 mg (35 mg TID) may
suffice.
58. Indications for iv iron
• Severe symptomatic anemia requiring
accelerated erythropoesis
• Failure of oral iron from g.i intolerance
• Failure of oral iron due to absorption issues
H pylori infection, autoimmune gastritis, celiac disease, gastric
bypass surgery, inflammatory bowel disease
• Cancer and chemotherapy associated anemia
• Anemia with chronic renal disease (with or
without[?] dialysis dependance)
• Heavy ongoing g.i or menstrual blood losses
59. • High molecular weight Iron Dextran is not
routinely used anymore due to a much poorer
safety profile (anaphalyctoid reactions) in
comparison to newer iron preparations
• Hemoglobin iron deficit (mg) = Body Wt x (14 -
Hgb) x (2.145)+1000
60. parenteral iron Preparations and
dosage
• (i) Iron-dextran: 15 ml vial, 50 mg of elemental
iron/ml.
• (ii) Iron-Sorbitol-Citric acid complex: 1.5 ml vial, 50
mg of iron/ml.
• For IV use:
• (i) High molecular weight iron dextran, 1-2 ml vial,
50 mg iron/ml.
• (ii) Low molecular iron dextran 2ml vial, 50 mg of
iron/ml
• (iii) Iron saccharate (Ferric hydroxide complexed
with sucrose), 5ml vial, 20 mg of iron/ml.
61. • (iv) Ferric gluconate, 5 ml vial, 12.5 mg
iron/ml.
• (v) ferric carboxymaltose, 15 ml single use vial,
50 mg iron/ml, given as 2 doses separated by
at least 7 days.
• (vi) Ferumoxytol, 17 ml single use vial, 30 mg
iron/ml, given as 2 doses separated by 2-8
days.
62. • lron-dextran It is a high molecular weight
colloidal solution containing 50 mg elemental
iron
• Route:- i.m. as well as i.v.
• By i.m. route it is absorbed through lymphatics,
circulates without binding to transferrin and is
engulfed by RE cells where iron dissociates and is
made available to the erythron for
haemesynthesis..
• dextran is antigenic:- anaphylactic reactions are
more common
63. • Test dose:- 25mg (0.5ml) gradually over 30secs
an observe for 1hr
• IM: Injectio n is given deeply in the gluteal
region using Z track technique Iron dextran
can be injected 2 ml daily, or on alternate
days, or 5 ml each side on the same day
• Intravenous: A dose of 2 ml containing 1OO
mg iron is injected per day taking IO min for
the injection. Alternatively, the total
calculated dose is diluted in 500 ml of
glucose/saline solution and infused i.v. over 6-
8 hours under constant
64. • Ferrous-sucrose This newer formulation is a
high molecular weight complex of iron
hydroxide with sucrose,
• on i.v. injection is taken up by RE cells, where
iron dissociates and is utilized.
• It is safer than the older iron dextran
• dose of 100 mg (max 200mg) can be injected
i.v. taking 5 min, once daily to once weekl y till
the total calculated
65. • Ferric carboxymaltose :-the ferric hydroxide core
is stabilized by a carbohydrate shell.
• It is rapidly taken up by the RE cells, primarily in
bone marrow (upto 80%),Iiver and spleen.
• 15ml single use vial 50mg/ml given as 2 dose
separated by atleast 7 days
• or upto I000 mg is diluted with I00 ml saline
(not glucose solution) and in fused i. v. taking 15
min or more.
• It should not be injected i.m.
66. • it has caused a rapid increase in haemoglobin
level in anaemia patients and replenished stores.
• The incidence of acute reaction is very low.
• Headache, nausea, abdominal pain are generally
mild.
• Hypotension, flushing and chest pain are
infrequent.
• Due to lack o f safety data, it is not recommended
for children < 14 years.
67. Lmw Iron
Dextran
Iron Sucrose Ferric
Gluconate
Ferumoxytol Ferric Carboxy
maltose
Administered
Dosage
100mg 200 mg 125 mg 510mg 750mg
Total Dose
Infusion
1000 mg no no 1020 mg 3d
apart
1500mg 7d
apart
Cost Inexpensive Inexpensive Inexpensive Expensive Expensive
Indication IDA IDA in CKD IDA in
CKD/HD
+epo
IDA in CKD IDA
+
IDA in CKD
Test dose Yes none none None None
Administratio
n
Iv
(preferred)
or im
Iv push or
15m
infusion
i.v push or
1hr infusion
17s i.v push or
15 m infusion
7.5 m iv push or
15 m infusion
68. Response to oral Iron Therapy
• Peak reticulocyte count 7 - 10 d.
• Increased Hb and Hct 14 - 21 d.
• Normal Hb and Hct 2 months
• Normal iron stores 4 - 5 months
69.
70. References
• Harrison 20th edition
• Clinical laboratory hematology Shirlyn B.
McKenzie 2nd edition
• Wintrobes clinical hematology 14th edition
• Goodman and gilman’s 13th edition