When a blood vessel ruptures, platelets collect at the site of injury to form a temporary plug. A series of coagulation factors then interact to convert fibrinogen into fibrin and form a blood clot. Bleeding disorders occur if coagulation factors are deficient or function improperly. The prothrombin time (PT) and partial thromboplastin time (PTT) tests evaluate the intrinsic and extrinsic clotting pathways. An abnormal PT may indicate a deficiency in certain coagulation factors, while an abnormal PTT suggests a platelet or factor deficiency within the intrinsic pathway. Together these tests help diagnose the cause of bleeding disorders.
This presentation is focused on diagnostic utility of Red blood cell indices which will be very useful for undergraduate and postgraduate of medical field.
This would give an idea of the various bleeding disorders, associated clotting factors and more specifically management in the dental office of the patients with bleeding disorders
This presentation is focused on diagnostic utility of Red blood cell indices which will be very useful for undergraduate and postgraduate of medical field.
This would give an idea of the various bleeding disorders, associated clotting factors and more specifically management in the dental office of the patients with bleeding disorders
Investigation of bleeding disorder || bleeding disorderparveen singh
this is a topic on investigation of bleeding disorder.
This may result from:
1 Vascular disorders
a] Thrombocytopenia
2Platelet Disorder
b] Defective platelet function
3Defective coagulation
4Defective Fibrinolysis
it is due to
-Inherited bleeding disorders
-Acquired bleeding disorders
investigation include:
first line test {basic test daily done in coagulation lab}
second line test {some important test done whenever all first line investigation test are normal }
Main Credit Goes To__-----___--- nitin dudeja {senior}
Activated Partial Thromboplastin Time(APTT)Lab Finder
One test can save your life. Know what a APTT is, why you should have it, who should get it, and where can you get tested as well as get your results fast.
Visit: https://www.labfinder.com and get tested now!
Clotting time - Coagulation of whole bloodSHRUTHI VASAN
Coagulation of blood - Clotting Time - Introduction - Methods - Capillary Method - Tube Method - Lee White Method - Procedure - Normal Range - Discussion.
Investigation of bleeding disorder || bleeding disorderparveen singh
this is a topic on investigation of bleeding disorder.
This may result from:
1 Vascular disorders
a] Thrombocytopenia
2Platelet Disorder
b] Defective platelet function
3Defective coagulation
4Defective Fibrinolysis
it is due to
-Inherited bleeding disorders
-Acquired bleeding disorders
investigation include:
first line test {basic test daily done in coagulation lab}
second line test {some important test done whenever all first line investigation test are normal }
Main Credit Goes To__-----___--- nitin dudeja {senior}
Activated Partial Thromboplastin Time(APTT)Lab Finder
One test can save your life. Know what a APTT is, why you should have it, who should get it, and where can you get tested as well as get your results fast.
Visit: https://www.labfinder.com and get tested now!
Clotting time - Coagulation of whole bloodSHRUTHI VASAN
Coagulation of blood - Clotting Time - Introduction - Methods - Capillary Method - Tube Method - Lee White Method - Procedure - Normal Range - Discussion.
THROMBOCYTOPENIA is decreased platelet count we call it thrombocytopenias. causes of this are called an infection, cancer condition, some type of the drugs like heparin, etc. signs and symptoms of the is bleeding tendency patiche, purpuraetc/ the management of this is plasma transfusion admin situation of some of the drug immunotherapy is helpful for this condition. surgery splenectomy.
This seminar includes hemostasis,mechanism of blood clotting and associated blood dyscrasias commonly seen in children and their treatments with a note on antifibrinolytics
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
Recomendações da OMS sobre cuidados maternos e neonatais para uma experiência pós-natal positiva.
Em consonância com os ODS – Objetivos do Desenvolvimento Sustentável e a Estratégia Global para a Saúde das Mulheres, Crianças e Adolescentes, e aplicando uma abordagem baseada nos direitos humanos, os esforços de cuidados pós-natais devem expandir-se para além da cobertura e da simples sobrevivência, de modo a incluir cuidados de qualidade.
Estas diretrizes visam melhorar a qualidade dos cuidados pós-natais essenciais e de rotina prestados às mulheres e aos recém-nascidos, com o objetivo final de melhorar a saúde e o bem-estar materno e neonatal.
Uma “experiência pós-natal positiva” é um resultado importante para todas as mulheres que dão à luz e para os seus recém-nascidos, estabelecendo as bases para a melhoria da saúde e do bem-estar a curto e longo prazo. Uma experiência pós-natal positiva é definida como aquela em que as mulheres, pessoas que gestam, os recém-nascidos, os casais, os pais, os cuidadores e as famílias recebem informação consistente, garantia e apoio de profissionais de saúde motivados; e onde um sistema de saúde flexível e com recursos reconheça as necessidades das mulheres e dos bebês e respeite o seu contexto cultural.
Estas diretrizes consolidadas apresentam algumas recomendações novas e já bem fundamentadas sobre cuidados pós-natais de rotina para mulheres e neonatos que recebem cuidados no pós-parto em unidades de saúde ou na comunidade, independentemente dos recursos disponíveis.
É fornecido um conjunto abrangente de recomendações para cuidados durante o período puerperal, com ênfase nos cuidados essenciais que todas as mulheres e recém-nascidos devem receber, e com a devida atenção à qualidade dos cuidados; isto é, a entrega e a experiência do cuidado recebido. Estas diretrizes atualizam e ampliam as recomendações da OMS de 2014 sobre cuidados pós-natais da mãe e do recém-nascido e complementam as atuais diretrizes da OMS sobre a gestão de complicações pós-natais.
O estabelecimento da amamentação e o manejo das principais intercorrências é contemplada.
Recomendamos muito.
Vamos discutir essas recomendações no nosso curso de pós-graduação em Aleitamento no Instituto Ciclos.
Esta publicação só está disponível em inglês até o momento.
Prof. Marcus Renato de Carvalho
www.agostodourado.com
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
ASA GUIDELINE
NYSORA Guideline
2 Case Reports of Gastric Ultrasound
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
This year, the flu season is expected to coincide with a potential increase in other respiratory illnesses. The Karnataka Health Department has launched an awareness campaign highlighting the significance of flu vaccinations. They have set up multiple vaccination centers across Bangalore, making it convenient for residents to receive their shots.
To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
- WHAT’S NEW IN THE TREATMENT OF INFECTIOUS,
ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
- ARTIFICIAL INTELLIGENCE AND ETHICS
- GENE THERAPY
- BEYOND BORDERS: GLOBAL INITIATIVES FOR DEMOCRATIZING LIFE SCIENCE TECHNOLOGIES AND PROMOTING ACCESS TO HEALTHCARE
- ETHICAL CHALLENGES IN LIFE SCIENCES
- Prix Galien International Awards Ceremony
Acute scrotum is a general term referring to an emergency condition affecting the contents or the wall of the scrotum.
There are a number of conditions that present acutely, predominantly with pain and/or swelling
A careful and detailed history and examination, and in some cases, investigations allow differentiation between these diagnoses. A prompt diagnosis is essential as the patient may require urgent surgical intervention
Testicular torsion refers to twisting of the spermatic cord, causing ischaemia of the testicle.
Testicular torsion results from inadequate fixation of the testis to the tunica vaginalis producing ischemia from reduced arterial inflow and venous outflow obstruction.
The prevalence of testicular torsion in adult patients hospitalized with acute scrotal pain is approximately 25 to 50 percent
New Drug Discovery and Development .....NEHA GUPTA
The "New Drug Discovery and Development" process involves the identification, design, testing, and manufacturing of novel pharmaceutical compounds with the aim of introducing new and improved treatments for various medical conditions. This comprehensive endeavor encompasses various stages, including target identification, preclinical studies, clinical trials, regulatory approval, and post-market surveillance. It involves multidisciplinary collaboration among scientists, researchers, clinicians, regulatory experts, and pharmaceutical companies to bring innovative therapies to market and address unmet medical needs.
These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
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Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
The prostate is an exocrine gland of the male mammalian reproductive system
It is a walnut-sized gland that forms part of the male reproductive system and is located in front of the rectum and just below the urinary bladder
Function is to store and secrete a clear, slightly alkaline fluid that constitutes 10-30% of the volume of the seminal fluid that along with the spermatozoa, constitutes semen
A healthy human prostate measures (4cm-vertical, by 3cm-horizontal, 2cm ant-post ).
It surrounds the urethra just below the urinary bladder. It has anterior, median, posterior and two lateral lobes
It’s work is regulated by androgens which are responsible for male sex characteristics
Generalised disease of the prostate due to hormonal derangement which leads to non malignant enlargement of the gland (increase in the number of epithelial cells and stromal tissue)to cause compression of the urethra leading to symptoms (LUTS
NVBDCP.pptx Nation vector borne disease control programSapna Thakur
NVBDCP was launched in 2003-2004 . Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding arthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria.
Title: Sense of Smell
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
2. When blood vessel ruptures….
• When you get a cut and your blood vessel ruptures, blood
platelets collect at the site of the wound. They create a
temporary plug to stop the bleeding. In order to produce a
strong blood clot, a series of 12 plasma proteins, or
coagulation “factors” act together to make a substance called
fibrin, which seals the wound.
• A bleeding disorder known as hemophilia could cause your
body to create certain coagulation factor incorrectly, or not at
all. Some medications, liver disease, or vitamin K deficiency
may cause abnormal clot formation.
3. • Symptoms of a bleeding disorder include:
• easy bruising
• bleeding that won’t stop, even after applying
pressure to the wound
• heavy menstrual periods
• blood in the urine
• swollen or painful joints
• nosebleeds
4. • Hemostasis or haemostasis :
is a complex process which causes the
bleeding process to stop. It refers to the
process of keeping blood within a damaged
blood vessel.
5. Hemostasis is maintained in the body via
three mechanisms:
• Vascular spasm - Damaged blood vessels constrict.
• Platelet plug formation - Platelets adhere to
damaged endothelium to form platelet plug (primary
hemostasis) and then degranulate.
• Blood coagulation - Clots form upon the conversion
of fibrinogen to fibrin, and its addition to the platelet
plug (secondary hemostasis).
6. THE CLOTTING MECHANISM
INTRINSIC EXTRINSC
PROTHROMBIN THROMBIN
FIBRINOGE
N
FIBRIN(II) (III)
(I)
V
X
Tisue ThromboplastinCollagen
VII
XII
XI
IX
VIII
16. PROTHROMBIN TIMEPROTHROMBIN TIME
Measures Effectiveness of the ExtrinsicMeasures Effectiveness of the Extrinsic
PathwayPathway
NORMAL VALUENORMAL VALUE
10-15 SECS10-15 SECS
11-16 sec depends……..11-16 sec depends……..
17. PT
• The prothrombin time: is therefore the time required for the plasma
to clot after an excess of thromboplastin and an optimal
concentration of calcium have been added.
• Measures the function of the Extrinsic Pathway.
• Sensitive to Factors I, II, V, VII, X.
• The PT evaluates patients suspected of having an inherited or
acquired deficiency in these pathways.
18. Principles
• When preformed tissue
thromboplastin and calcium chloride
are added to citrated plasma, the
plasma clots. The time taken for the
clot to appear is called Prothrombin
time (PT).
19. Procedure
• Requirements.
• Patient‘s platelet-poor plasma
• Normal, control‘ plasma‗
• Thromboplastin Reagents
• Glass Tubes Automatic Micropipettes of 100
μl
• A Water Bath set at 37°C Stop watches
• A Table Lamp
20. Performance
• Set the table lamp behind the water bath in such a way that the tubes can
be seen against it but the eyes of the scientist are protected from direct
light.
• Place four plain glass tubes in the water bath to warm at 37°C.
• Deliver 100 μl of test plasma in a test tube and wait for 2 minute.
• Deliver 200 μl of commercial tissue thrombo plastin and
• start the stopwatch simultaneously.
• Mix the contents and leave. After 6-8 seconds, examine the tube against
shielded light for clot formation, by tilting.
• Keep on doing so every 1-2 seconds by briefly taking the tube out of the
water.
• Stop the stopwatch when a visible clot is formed in the test tube and
note the time.
• Repeat the procedure once again on the test plasma. Take the mean of
the two recorded times. Repeat the test on the control plasma as done
for the patient‘s plasma
21. Precautions:
• The blood should be collected through a clean
venipuncture & without much stasis.
• The proportion of anticoagulant and blood should be
precise and appropriate.
• The samples should not be allowed to stand at room
temperature for too long.
• If a delay is expected, these should be transported on
crushed ice.
• The platelet-poor plasma should be separated as soon as
possible.
• The blood should be collected and processed using
disposable plastic syringes, tubes and pipettes.
• The test should always be performed in clean glass tubes.
22. • The results are also reported as a ratio between the
patient‘s Prothrombin Time & that of the test plasma
or as INR.
• Interpretations:
• Prothrombin Time is prolonged in deficiency of
Factors II, V, VII and X as well as in the presence of
Heparin. This can occur in the following conditions:
Oral anticoagulant therapy (Vitamin K antagonists)
Obstructive jaundice Liver disease Haemorrhagic
disease of the newborn Malabsorption Vitamin K
deficiency Hereditary deficiency of concerned
23. PT RESULT PTT RESULT
EXAMPLES OF CONDITIONS THAT MAY BE
PRESENT
Prolonged Normal Liver disease, decreased vitamin K,
decreased or defective factor
VII, chronic low-
grade disseminated intravascular
coagulation (DIC), anticoagulation
drug (warfarin) therapy
Normal Prolonged Decreased or defective factor VIII,
IX, XI, or XII, von Willebrand
disease (severe type), presence
of lupus anticoagulant,
autoantibody against a specific
factor (e.g., factor VIII)
Prolonged Prolonged Decreased or defective factor I, II, V
or X, severe liver
disease, acute DIC, warfarin
overdose
Normal Normal or slightly prolonged May indicate normal hemostasis;
however, PT and PTT can be
normal in conditions such as mild
deficiencies in coagulation
factor(s) and mild form of von
Willebrand disease. Further testing
may be required to diagnose these
conditions.
nterpretation of PT and PTT in Patients with a Bleeding or Clotting Syndrome
24. THE CLOTTING MECHANISM
INTRINSIC EXTRINSC
PROTHROMBIN THROMBIN
FIBRINOGE
N
FIBRIN(II) (III)
(I)
V
X
Tisue ThromboplastinCollagen
VII
XII
XI
IX
VIII
25. When is it ordered?
• Used to monitor oral anticoagulant therapy (Warfarin /
Coumadin).
• When a patient who is not taking anti-coagulant drugs
has signs or symptoms of a bleeding disorder.
• When a patient is to undergo an invasive medical
procedure, such as surgery, to ensure normal clotting
ability.
26. An elevated prothrombin time may indicate the
presence of:
Vitamin K deficiency
(Vitamin K is needed to make prothrombin and other clotting factors)
DIC
liver disease
a deficiency in one or more of the following factors:
I, II, V, VII, X.
Anticoagulant (warfarin)
27. INR
• A PT test may also be called an INR test.
• INR (international normalized ratio) stands for a way of
standardizing the results of prothrombin time tests, no
matter the testing method.
• So your doctor can understand results in the same way
even when they come from different labs and different
test methods.
• Using the INR system, treatment with (anticoagulant
therapy) will be the same. In some labs, only the INR is
reported and the PT is not reported
28. INR
• An INR of 1.0 means that the patient PT is normal.
• An INR greater than 1.0 means the clotting time is
elevated.
• INR of greater than 5 or 5.5 = unacceptable high risk of
bleeding,whereas if the INR=0.5 then there is a high
chance of having a clot.
• Normal range for a healthy person is 0.9–1.3, and for
people on warfarin therapy, 2.0–3.0, although the target
INR may be higher in particular situations, such as for
those with a mechanical heart valve.