Table 3.
TPHA and RPR Results of False‐Negative Rapid Test Results
| Sample | TPHA | RPR | SD Bioline | Hexagon |
|---|---|---|---|---|
| 1 | Positive | Reactive 1:1 | Negative | Positive |
| 2 | Positive | Reactive 1:1 | Negative | Positive |
| 3 | Positive | Reactive 1:2 | Negative | Positive |
| 4 | Positive | Reactive 1:1 | Negative | Positive |
| 5 | Positive | Reactive 1:1 | Negative | Positive |
| 6 | Positive | Reactive >1:32 | Negative | Positive |
| 7 | Positive | Reactive 1:2 | Positive | Negative |
| 8 | Positive | Reactive 1:1 | Negative | Negative |
| 9 | Positive | Reactive 1:1 | Negative | Negative |
| 10 | Positive | Reactive 1:1 | Negative | Negative |
| 11 | Positive | Reactive 1:2 | Negative | Negative |
| 12 | Positive | Nonreactive | Negative | Negative |
| 13 | Positive | Nonreactive | Negative | Negative |
| 14 | Positive | Nonreactive | Negative | Positive |
| 15 | Positive | Not available | Negative | Negative |