dengue fever Flashcards
other name for dengue fever
breakbone fever
DHF
DANDY FEVER
7 DAY FEVER
DENV
1,2,3,4
family of dengue fever
flaviviridae
genus of DF
flavivirus —- renamed in 2023 —- ORTHOFLAVIVIRUS
MOT of DF
vector- bite of aedes aegypti (female)
characteristics of aedes aegypti
D day biting (3pm)
L low flying
S stagnant water
U urban areas
causative agents of DF
dengue virus type 1,2,3,4
chikungunya virus
o’nyong’nyong virus
incubation period of DF
6-7 days
diagnostic test for DF
torniquet test/ rumpel leads/ capillary fragility test
how they do the torniquet test??
- get the BP of your patient
- inflate the BP cuff midway between the SBP and DBP
- inflate the BP - 100mmHg and let stay there for 2-3 minutes
- deflate cuff and make an imaginary box about 1 inch square below the antecubital fossa
- count the number of the petichae (rashes)
how is it determined if it is positive for tornique test?
if the petichae count is 10-20 within the imaginary box
stages of DHF
a. febrile or invasive stage ( last for 1-3 days)
b. toxic/ hemorrhagic stage (4-7 days)
c. convalescence/ recovery stage (8-10 days)
s/sx of febrile stage in DHF
- rash (appears at the 3rd day)
- fever (40C or 104F) / chills
- arthralgia / malaise
- n/v, loss of appetite
- headache / abdominal pain
s/sx of toxic or hemorrhagic stage
- epistaxis
- gum bleeding
- melena
*** avoid dark color beverages — masks s/sx of bleeding - narrow pulse pressure ( hypotension, weak&thready pulse)
convalescence/ recovery stage
- regains appetite
- BP normalizes
- generalized flushing
Grade levels of DHF
level 1,2,3,4
grade level 1
-fever
- (+) tornique test
- abdominal pain
- no bleeding
grade level 2
-signs of spontaneous bleeding
epistaxis
gum bleeding
melena
grade level 3
signs of circulatory collapse
hypotension
narrowed pulse pressure
weak and thready pulse
grade level 4
signs of profused/ severe shock
nursing management for DF
- bed rest
- avoid constipation
- ice packs sa forehead (if may epistaxis)
- TSB
- increase OFI - 3-4 L/day, increase circulatory blood volume
- monitor v/s
- diet: increase carbohydrates, increase proteins, increase vit C
- clean surroundings
medical management for DHF
- ORESOL
- ACETAMINOPHEN (for fever)
- CODEINE (for severe headache and for myalgia)
- NO ASPIRIN!!! (increase bleeding tendencies)
what is oresol
homemade solution composed of a PINCH of salt 4-6 tsp of sugar mixed to 1L of water
medical management for DHF
- ORESOL
- ACETAMINOPHEN (for fever)
-CODEINE (for severe headache and myalgia) - NO ASPIRIN!! (increase bleedng tendencies)
vaxx for DHF
dengvaxia - 2016
Qdenga 2022
dengvaxia
dosage:
route:
storage:
# of doses:
interval:
discard reconstituted vaccine if not used within
syringe:
gauge:
dengvaxia
dosage: 0.5ml
route: SQ
storage: body (2-8) body of ref
# of doses: 3 (day 0, after 6 months,12 months)
interval: 6 months apart
syringe: 5/8
gauge: 23/ 25
discard reconstituted vaccine if not used within 30 mins
other vaxx for DHF
Qdenga - 2022
Qdenga
dosage:
route:
doses:
interval:
dosage: 0.5ml
route: SQ
doses: 2 doses
interval: 3 months
contraindications for dengvaxia and Qdenga
HIV/AIDS
immunosuppression
chemotherapy
corticosteroids therapy
pregnancy
breastfeeding
