Practical reasons for test failure
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Practical considerations and reasons for test failure
(a) Quality of test design/production. Historically there was significant variation of performance between tests and batches, this has been greatly improved with the WHO pre-qualification testing program that requires a minimum standard of performant, however users are still advised to check the performance of their selected test (see WHO testing information ref 2 above) 2. Stability and storage issues (a) RDTs typically have a shelf-life of 18–24 months providing storage is appropriate. 3. Operator training (a)Problems in test usage may include inappropriate placement of test reagents or blood sample on RDT. |