TABLE 1.
Specimen type | No. tested | No. nonreactive | No. reactive | Specificity (%) |
---|---|---|---|---|
Serum | 1,000 | 995 | 5a | 99.5 |
EDTA plasma | 1,504 | 1,500 | 4b | 99.7 |
Combined | 2,504 | 2,495 | 9 | 99.6 |
Upon retest, four of five initially reactive serum specimens were nonreactive.
Upon retest, three of four initially reactive EDTA plasma specimens were nonreactive.