| Blood work, including rapid plasma reagin for syphilis and heavy metal screening, had been reported as normal. |
| Even without a confirmatory rapid plasma reagin test or darkfield examination of the gummatous discharge, the diagnosis of secondary syphilis was obvious. |
| Tests for human immunodeficiency virus and borreliosis were negative, and her rapid plasma reagin test was nonreactive. |
| The results of a VDRL test and rapid plasma reagin were negative. |
| This reaction is the basis of traditional nontreponemal tests such as the VDRL test and rapid plasma reagin test. |
| In RPR and VDRL the detection of syphilis reagin is based on the reaction of reagin with a lipid antigen usually extracted from beef heart to produce a visible clumping, or flocculation, within the serum. |
