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GUIDED BY:
MR. PAVANKUMAR JAIN
PRESENTED BY:
SONAL PATEL
PRACTICE TEACHING ON
DENGUE
Introduction:
Dengue fever is a viral illness caused by
infectionWith 1 of 4 types of the dengue virus.
Dengue is transmitted by several species of
mosquito within the genusAedes, principally A.
aegypti. The virus has five different types; infection
with one type usually gives lifelong immunity to
that type, but only short-term immunity to the
others. Subsequent infection with a different type
increases the risk of severe complications. As there
is no commercially available vaccine, prevention is
sought by reducing the habitat and the number of
mosquitoes and limiting exposure to bites.
 EPIDERMIOLOGY:
Dengue fever is important disease in tropics and
subtropics. Based on clinical description, disease is
to be existence over two countries. In India, the
fever has documented from early part of the last
century. The virus was first isolated in calcutta in
1945. Several outbreaks from different parts of the
country has been reported during last 50 years. For
very long, dengue was recognized exclusively as an
urban disease, but now it is also considered an
important disease in rural area.
 DEFINITION:
“an acute infectious disease caused by a flavivirus
(speciesDengue virus of the genus Flavivirus),
transmitted by aedes mosquitoes, and
characterized by headache, severe joint pain, and a
rash —called also breakbone fever, dengue fever”
“Dengue fever also known as break bone fever, is
an infectious tropical disease caused by the dengue
virus. Symptoms include fever, headache, muscle
and joint pains, and a characteristic skin rash that is
similar to measles. In a small proportion of cases
the disease develops into the life-threatening
dengue hemorrhagic fever, resulting in bleeding,
low levels of blood platelets and blood plasma
leakage, or into dengue shock syndrome, where
dangerously low blood pressure occurs.”
Life cycle of the Aedes Mosquito
Stagnant water
Pupae Larvae Eggs
1-2 days
2-3 days4-5 days
How Do Aedes Mosquitoes Transmit
Diseases...
And passes the
virus to healthy
people when it
bites them
Mosquito bites and
sucks blood containing
the virus from an
infected person.
Virus is carried
in its body.
 TYPES OF DENGUE VIRUS:
Types of dengue virus: DEN-1, DEN-2,
DEN-3, and DEN-4.
You can be infected by at least two if not
all four types at different times during
your life time, but once by the same time
 RISK FACTORS:
• Age: all groups are affected
• Pre-existing anti –dengue antibody,either
caused by previous infection or to maternal
antibodies passed to infants
• Higher risk in secondary infections
• Higher risk inlocations with two or more
seroypes circulating simultaneously at high
levels
• Living or traveling in tropical areas
• Prior infection with a dengue fever virus
Example of a skin rash due
to dengue fever
Symptoms of Dengue Fever
 CLINICAL MENIFESTATION:
 [Simple/classicle dengue fever]
i. Sudden onset of high fever with feeling chills
ii. Severe headache, pain in muscle and joint
iii.Pain behind the eyeballs especially on passing the eyes
or on moving the eyeballs
iv.Extremes weakness, loss of appetite
v. Feeling of nausea
vi.Pain in abdomen by itself or on touching
vii.Mild pain in throat
viii.Swollen glands (lymphedenopathy)
ix.Patient feels generally depressed and very sick.
x. Rash on the skin: pinkish red rash appears on the skin in
the form of diffuse flushing.
Dengue Hemorrhagic fever:
It should be suspected if with above mentioned
symptoms of classical(simple) dengue fever, one or more
of the following symptoms appears –
Bleeding (hemorrhagic) manifestations: bleeding from
nose, gums, blood in stool in vomiting, bleeding spot on
the skin which are seen In as dark bluish-black, small or
large patches. If health workers carry out a tourniquet
tests, it is positive. Certain laboratory investigations
carried out on a blood samples carried out on a blood
sample also conformed DHF.
Dengue shock syndrome(DSS)
A symptoms as mentioned above DHF are present
plus the patient also develop a condition called as
“shock” symptoms of shock in a dengue fever case
are-
 The person is very restless and the skin feels cold
and clammy despite high fever.
 The person may start losing consciousness.
 If you examine the pulse rate of the patient, it is
weak and rapid. Similarly blood pressure getting
low.
MANAGEMENT:
If it is the classical (simple) dengue fever, the
patient can be managed at home. As it is self
limiting disease, the treatment is purely supportive
and symptomatic. Because dengue fever is caused
by a virus, there is no specific medicine or
antibiotic to treat it. For typical dengue, the
treatment is purely concerned with relief of the
symptoms (symptomatic). Rest and fluid intake for
adequate hydration is important. Ringer’s solution
or 5% dextrose in normal saline solution.
Aspirin and nonsteroidal anti-inflammatory drugs
should be taken under a doctor’s supervision
because of the possibility of worsening hemorrhagic
complication. Acetaminophen (tylenol) and codeine
may be given for severe headache and for the joint
and muscle pain (myalgia). In case you suffers from
dengue hemorrhagic fever, hospitalization is the
only operation its where supportive treatments like
intravenous fluid are administered to prevent the
shock. In sever shock colloid fluid should be given
at rate 10-20ml kg body/ weight/hour.
 TREATMENT:
1. Mainly Supportive
2. No hemorrhagic manifestations & well hydrated: patient sent home
with instructions for “follow up”
3. If hemorrhagic manifestations/hydration status borderline-patient
observed in hospitals
4. If warning signs are present even without evidence of shock or if
DSS present-hospitalized
5. Intravenous fluids with Electrolyte balance
6. Antipyretics-acetaminophen(aspirin and NSAIDS should be avoided
as they interfere with platelet function)
7. H2 blockers, antiemetics (Domperidone)
• Platelet and FFP transfusion when needed
• Monitoring of BP, urine output, platelet count and hematocrit
• Soft,balanced nutritious diet
• Monitor CBC, LFTs, S/E, PT/APTT
• When pulse pressure is ≤ 10 mmHg or when elevation of Hct
persists after replacement of fluids; plasma or colloids are
indicated
• FFP & platelets for bleeding
• No role of corticosteroids
• Look for evidence of complications
• Avoid hypervolaemia
 DENGUE PREVENTION:
Change water in vases on alternate days.
Do the 10-Minute Mozzie Wipe-out everyday.
Remove water from flowerpot plates on
alternate days.
Turn over all pails and water storage
containers.
Cover bamboo pole holders when not in use.
Clear blockages and put Bti insecticide in roof
gutters monthly.
Do not litter. Rubbish such as cups and
bottles can collect rain water and breed
mosquitoes.
Unwanted items
Nursing diagnosis:
1) The increase in body temperature related to the process of dengue
virus infection.
2) Deficit fluid volume related to the migration of intravascular fluid
in to extravascular.
3) Impaired nutrition less than body requirement related to the
decreased appetite.
4) Fluid volume deficit related to active fluid loss.
5) Hypovolumic shock related to hemorrhage.
6) Risk for bleeding related to thrombocytopenia.
7) Deficient knowledge: about the disease process related to lack of
information.
Take good care of your
health and avoid contract
with Dengue Fever.
Good Health! Thank you!

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Dengue

  • 1. GUIDED BY: MR. PAVANKUMAR JAIN PRESENTED BY: SONAL PATEL PRACTICE TEACHING ON DENGUE
  • 2. Introduction: Dengue fever is a viral illness caused by infectionWith 1 of 4 types of the dengue virus. Dengue is transmitted by several species of mosquito within the genusAedes, principally A. aegypti. The virus has five different types; infection with one type usually gives lifelong immunity to that type, but only short-term immunity to the others. Subsequent infection with a different type increases the risk of severe complications. As there is no commercially available vaccine, prevention is sought by reducing the habitat and the number of mosquitoes and limiting exposure to bites.
  • 3.  EPIDERMIOLOGY: Dengue fever is important disease in tropics and subtropics. Based on clinical description, disease is to be existence over two countries. In India, the fever has documented from early part of the last century. The virus was first isolated in calcutta in 1945. Several outbreaks from different parts of the country has been reported during last 50 years. For very long, dengue was recognized exclusively as an urban disease, but now it is also considered an important disease in rural area.
  • 4.
  • 5.  DEFINITION: “an acute infectious disease caused by a flavivirus (speciesDengue virus of the genus Flavivirus), transmitted by aedes mosquitoes, and characterized by headache, severe joint pain, and a rash —called also breakbone fever, dengue fever”
  • 6. “Dengue fever also known as break bone fever, is an infectious tropical disease caused by the dengue virus. Symptoms include fever, headache, muscle and joint pains, and a characteristic skin rash that is similar to measles. In a small proportion of cases the disease develops into the life-threatening dengue hemorrhagic fever, resulting in bleeding, low levels of blood platelets and blood plasma leakage, or into dengue shock syndrome, where dangerously low blood pressure occurs.”
  • 7. Life cycle of the Aedes Mosquito Stagnant water Pupae Larvae Eggs 1-2 days 2-3 days4-5 days
  • 8. How Do Aedes Mosquitoes Transmit Diseases... And passes the virus to healthy people when it bites them Mosquito bites and sucks blood containing the virus from an infected person. Virus is carried in its body.
  • 9.  TYPES OF DENGUE VIRUS: Types of dengue virus: DEN-1, DEN-2, DEN-3, and DEN-4. You can be infected by at least two if not all four types at different times during your life time, but once by the same time
  • 10.  RISK FACTORS: • Age: all groups are affected • Pre-existing anti –dengue antibody,either caused by previous infection or to maternal antibodies passed to infants • Higher risk in secondary infections • Higher risk inlocations with two or more seroypes circulating simultaneously at high levels • Living or traveling in tropical areas • Prior infection with a dengue fever virus
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  • 13. Example of a skin rash due to dengue fever Symptoms of Dengue Fever
  • 14.  CLINICAL MENIFESTATION:  [Simple/classicle dengue fever] i. Sudden onset of high fever with feeling chills ii. Severe headache, pain in muscle and joint iii.Pain behind the eyeballs especially on passing the eyes or on moving the eyeballs iv.Extremes weakness, loss of appetite v. Feeling of nausea vi.Pain in abdomen by itself or on touching vii.Mild pain in throat viii.Swollen glands (lymphedenopathy) ix.Patient feels generally depressed and very sick. x. Rash on the skin: pinkish red rash appears on the skin in the form of diffuse flushing.
  • 15. Dengue Hemorrhagic fever: It should be suspected if with above mentioned symptoms of classical(simple) dengue fever, one or more of the following symptoms appears – Bleeding (hemorrhagic) manifestations: bleeding from nose, gums, blood in stool in vomiting, bleeding spot on the skin which are seen In as dark bluish-black, small or large patches. If health workers carry out a tourniquet tests, it is positive. Certain laboratory investigations carried out on a blood samples carried out on a blood sample also conformed DHF.
  • 16. Dengue shock syndrome(DSS) A symptoms as mentioned above DHF are present plus the patient also develop a condition called as “shock” symptoms of shock in a dengue fever case are-  The person is very restless and the skin feels cold and clammy despite high fever.  The person may start losing consciousness.  If you examine the pulse rate of the patient, it is weak and rapid. Similarly blood pressure getting low.
  • 17. MANAGEMENT: If it is the classical (simple) dengue fever, the patient can be managed at home. As it is self limiting disease, the treatment is purely supportive and symptomatic. Because dengue fever is caused by a virus, there is no specific medicine or antibiotic to treat it. For typical dengue, the treatment is purely concerned with relief of the symptoms (symptomatic). Rest and fluid intake for adequate hydration is important. Ringer’s solution or 5% dextrose in normal saline solution.
  • 18. Aspirin and nonsteroidal anti-inflammatory drugs should be taken under a doctor’s supervision because of the possibility of worsening hemorrhagic complication. Acetaminophen (tylenol) and codeine may be given for severe headache and for the joint and muscle pain (myalgia). In case you suffers from dengue hemorrhagic fever, hospitalization is the only operation its where supportive treatments like intravenous fluid are administered to prevent the shock. In sever shock colloid fluid should be given at rate 10-20ml kg body/ weight/hour.
  • 19.  TREATMENT: 1. Mainly Supportive 2. No hemorrhagic manifestations & well hydrated: patient sent home with instructions for “follow up” 3. If hemorrhagic manifestations/hydration status borderline-patient observed in hospitals 4. If warning signs are present even without evidence of shock or if DSS present-hospitalized 5. Intravenous fluids with Electrolyte balance 6. Antipyretics-acetaminophen(aspirin and NSAIDS should be avoided as they interfere with platelet function) 7. H2 blockers, antiemetics (Domperidone)
  • 20. • Platelet and FFP transfusion when needed • Monitoring of BP, urine output, platelet count and hematocrit • Soft,balanced nutritious diet • Monitor CBC, LFTs, S/E, PT/APTT • When pulse pressure is ≤ 10 mmHg or when elevation of Hct persists after replacement of fluids; plasma or colloids are indicated • FFP & platelets for bleeding • No role of corticosteroids • Look for evidence of complications • Avoid hypervolaemia
  • 21.  DENGUE PREVENTION: Change water in vases on alternate days. Do the 10-Minute Mozzie Wipe-out everyday.
  • 22. Remove water from flowerpot plates on alternate days.
  • 23. Turn over all pails and water storage containers.
  • 24. Cover bamboo pole holders when not in use.
  • 25. Clear blockages and put Bti insecticide in roof gutters monthly.
  • 26. Do not litter. Rubbish such as cups and bottles can collect rain water and breed mosquitoes. Unwanted items
  • 27. Nursing diagnosis: 1) The increase in body temperature related to the process of dengue virus infection. 2) Deficit fluid volume related to the migration of intravascular fluid in to extravascular. 3) Impaired nutrition less than body requirement related to the decreased appetite. 4) Fluid volume deficit related to active fluid loss. 5) Hypovolumic shock related to hemorrhage. 6) Risk for bleeding related to thrombocytopenia. 7) Deficient knowledge: about the disease process related to lack of information.
  • 28. Take good care of your health and avoid contract with Dengue Fever. Good Health! Thank you!