Indications:
The examination can detect the presence in the blood of malaria parasite: Plasmodium.
Principle:
The realization of a thick film can concentrate the maximum noise in the minimum surface and therefore easier to detect.
Technique:
Levy vaccinostyle a large drop of blood from the fingertip.
Placed on a slide, gout is fragmented by stirring with vaccinostyle for a minute.
To expedite the review, you can practice a cytocentrifugation after hemolysis: the result is available within 1 h.
Results:
Red cells have disappeared, parasites appear more easily.
If the thick smear examination is best known for the emergency diagnosis of malaria, the thin film gives better results, faster pus:
– And it determines the type of Plasmodium: falciparum, malariae, ovale and vivax;
– We can calculate parasitaemia: more than 3%, it is considered dangerous (this is the number of parasites per 100 leukocytes).
The thick film also diagnose filariasis in blood wired microphone.
If in doubt about a malaria attack with smear-negative, it is necessary to do it again, to start treatment without, however, wait for results.
Cost:
B100 with thin smear.
Practical advice:
In case of thin film application, it should be noted at the laboratory taking any antimalarial that may affect the parasitic forms.
