Table 1 Comparison of microscopy with rapid diagnostic tests.
Microscopy | Rapid diagnostic test | |
---|---|---|
Time required to carry out | Approximately 1 h | Less than 30 minutes |
Training required | Extensive | Relatively little |
Sensitivity | 50 parasites/μl if skilled microscopist | >90% v blood film if >100 Pfalciparum parasites per μl |
Specificity | Operator dependent | Some false positives |
Specificity ranges from 92% to 95% for Pfalciparum | ||
Detects Pfalciparum | Yes | Yes |
Differentiates sexual stages (gametocytes) from asexual stages | Yes | No |
Differentiates P falciparum from non‐falciparum parasites | Yes | Partially, cannot speciate non‐falciparum parasites |