Infection Malaria Flashcards
(36 cards)
Who should avoid travelling to malaria area?
Asplenic
Preganant
Other than antimalarial, what other prevention methods are they?
Nets impregnated with permethrin is most effective
DEET 20-50% spray or lotion
50% provides the longest protection
Long sleeves and trousers after dusk
Who can use DEET spray?
On adults and children above 2 months
Advice on how to apply DEET?
Apply sunscree first and use at least SPF 30-50
As DEET reduces the SPF
Dose and treatment duration of doxycycline for malaria prophylaxis?
100mg OD
Take 1-2 days before entering pandemic area and continued for 4wks after leaving
Pt counselling in doxycycline?
Protect skin from sunlight - even on a bright but cloudy day
Do not use sunveds
Do not take indigestion remedies, or meds containing iron or zinc, 2hrs before or after meds
Swallow whole with plenty of fluid during meals while sitting or standing
Side effect of mefloquine?
Serious neuropsychiatric reactions
- psychosis, suicidal ideation and suicide
- proderomal symptoms for serious events like abnormal dreams, insomnia, nightmares, depression, anxiety, restlessness, confusion
So contra indicated if history of psychiatric disorders including depression or convulsions
Pt counselling on mefloquine?
Makes you dizzy so careful with driving
Mefloquine gas a long half life so side effects can persist up to several months after stopping
Stop and seek medical advice if neuropsychiatric reactions
Length of prophylaxis before travelling?
Usually 1 wk
Apart fro mefloquine which is 2-3wks
Malarone and doxycycline 1-2 days
Length of prophylaxis after travel?
Usually 4wks after
Except Malarone which is 1wk after
How long can you take chloroquine and proguanil as long term prophylaxis?
More than 5yrs
How long can you take doxycycline as long term prophylaxis?
2yrs
How long can you take mefloquine and Malarone as long term prophylaxis?
1yrs
What antimalarial need to be avoided in epileptic pts?
Chloroquine and mefloquine
What antimalarial needs to be avoided in renal impairment?
Progianil
Malarone and chloroquine if egft is below 30ml/min
What Antimalatials are suitable for pts with renal impairment?
Doxycycline or mefloquine
What Antimalatials are recommended for Preganancy?
Chloroquine and proguanil (but a lot of resistance)
5mf folic acid is given with proguanil
What Antimalatials should be avoided in pregnancy?
Doxycycline
Mefloquine
Malarone (if there is no alternative, may give in 2nd or 3rd trimester
Antimalarial treatment in pts taking warfarin?
Start prophylaxis 2_3wks before
INR should be stable before departure
Monitor INR before, 7days after starting and after completing the course
For prolonged stay, check INR regularly in visiting country
What type of mosquito causes malaria?
Anopheles
What’s the mosquito that causes the most dangerous malaria?
P. Falciparum
Symptoms of malaria?
Rigors Fever Profuse sweating Headache N and V Muscle oain Bloody stools Seizures
When can you experience malaria symptoms?
Within 1yr, especially the first 3 months of return from malarial region
Which antimalarial act as causal Prophylactic and prevent parasite from infecting RBC?
Malarobe
Atovaquonr and proguanil
Proguanil has mainly suppressive activity but also has some causal activity