There is clear evidence diagnosis of malaria in much of Africa is sub-optimal and this has a negative impact on patient care. Many of those treated for malaria do not have it. Rapid diagnostic tests (RDTs) are dipsticks which diagnose malaria rapidly and accurately. The main objective of this trial is to determine by means of a randomised trial the impact of introducing RDTs into a standard outpatient setting in Tanzania has on the appropriate prescription of antimalarials. Other objectives are: 1. To compare at high, moderate and low P.falciparum transmission intensity the sensitivity and specificity of malaria diagnosis using hospital slide results and RDTs, using research quality slides as the reference. 2. To estimate the specificity of clinical diagnosis of malaria at high, moderate and low transmission intensity of P. falciparum. 3. To compare the proportion of cases reported as slide-negative who are treated for malaria with the proportion of RDT-negative cases treated for malaria. 4. To evaluate the cost effectiveness of introducing RDTs compared to current diagnostic practice in facilities with microscopic diagnosis of malaria at different levels of transmission of P.falciparum.
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