Malaria Test Result Meaning — MP, RDT and Parasite Density

Two different tests are commonly used. A rapid diagnostic test (RDT) detects malaria antigen and gives an answer in minutes. Microscopy — the MP or blood film — actually counts parasites, which tells you how heavy the infection is. Both have a place.

Reference ranges

RDT positiveMalaria antigen detected
MP positive with densityParasites counted per microlitre or as +/++/+++
NegativeNo malaria detected in this sample
NoteRDTs can stay positive for weeks after successful treatment

Reference ranges vary between laboratories and methods. Always read your result against the range printed on your own report.

Seek care urgently if

What a high result can mean

High parasite density (+++)

Indicates heavier infection needing prompt and sometimes inpatient treatment.

Positive with severe symptoms

Severity is judged clinically, not by the count alone.

Persistently positive RDT after treatment

Often residual antigen rather than treatment failure.

What a low result can mean

Negative with ongoing fever

Malaria is not the cause — the fever needs another explanation rather than empirical antimalarials.

Low density

Treated, but consider whether it fully explains the symptoms.

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What happens next

A negative malaria test with continuing fever is important information — it means something else is causing it. Repeated presumptive antimalarial courses without a positive test is one of the more harmful habits in Nigerian self-treatment.

Malaria & Typhoid Test Full Blood Count Urinalysis

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CD4

This page explains what a result can mean in general terms. It is not a diagnosis and cannot account for your history, medication or examination. All visits to Mascot Healthcare are by appointment — Mon–Sat, 9AM–5PM, 52 Sholanke Street, Akoka, Yaba, Lagos.