Table 3.
RDT observation checklist step* | Visit number | Percentage point change in score | ||||
---|---|---|---|---|---|---|
First | Second | Third | First to second | Second to third | First to third | |
Number of observations | 2,066 | 2,079 | 2,205 | – | – | – |
Put on a new pair of gloves | 54.1% | 68.7% | 75.1% | +14.6% | +6.4% | +18.9% |
Check expiry date on the package | 56.9% | 74.2% | 75.8% | +17.3% | +1.6% | +1.4% |
Write client ID on cassette | 85.4% | 89.1% | 86.8% | +3.7% | −2.3% | +8.1% |
Clean patient finger with antiseptic/alcohol and allow to dry | 84.1% | 91.1% | 92.2% | +7.0% | +1.1% | +5.4% |
Collect the right amount of blood with the inverted cup† | 89.2% | 93.7% | 94.6% | +4.5% | +0.9% | +1.1% |
Put collected blood into the correct well | 98.4% | 99.5% | 99.5% | +1.1% | 0.0% | +5.7% |
Applies right amount of buffer to correct well | 85.3% | 90.6% | 91.0% | +5.3% | +0.4% | +11.7% |
Wait for the correct time before reading results | 77.3% | 86.9% | 89.0% | +9.6% | +2.1% | +2.2% |
Read the test results correctly | 96.7% | 98.7% | 98.9% | +2.0% | +0.2% | +7.5% |
Record the test results in a laboratory register | 87.5% | 93.8% | 95.0% | +6.3% | +1.2% | +6.4% |
Dispose of used tests, transfer devices, and other blood-contaminated material | 85.7% | 90.0% | 92.1% | +4.3% | +2.1% | +4.0% |
Dispose used lancet in sharps container | 88.9% | 91.4% | 92.9% | +2.5% | +1.5% | +21.0% |
* RDT = rapid diagnostic test.
† Checklist steps in bold (“minimum standard” steps) are considered more important and are collectively weighted twice as much as the other steps when calculating the overall RDT performance score.