Suppose a Serum VDRL Gave a Positive Result, and CSF

question 7

Multiple Choice

Suppose a serum VDRL gave a positive result, and CSF showed 8 nucleated cells/mm³.What follow up test should be used in the laboratory diagnosis of neurosyphilis if the CSF VDRL tested positive, and what follow-up test should be used in the laboratory diagnosis of neurosyphilis if the CSF VDRL tested negative?

• A)T.pallidum particle agglutination test, no follow-up testing is required
• B)fluorescent treponemal antibody test, no follow-up testing is required
• C)no follow-up testing is required, T.pallidum particle agglutination test
• D)no follow-up testing is required, fluorescent treponemal antibody test