A specific treponemal serologic test performed by overlaying whole treponemes that are fixed to a slide with serum from patients suspected of having syphilis and using fluorescein-conjugated antihuman antibody reagent to detect specific antitreponemal antibodies is called the _________ test.
a. RPR
b. FTA-ABS
c. VDRL
d. TP-PA
The Centers for Disease Control and Prevention (CDC) recommendations for testing in suspected cases of Lyme disease are to screen with ______ and confirm with ________.
a. RPR; FTA-ABS
b. enzyme-linked immunosorbent assay (ELISA); immunofluorescent antibody (IFA)
c. IFA; immunoblotting
d. ELISA; TP-PA
The most severe illness associated with leptospirae, with symptoms of liver, kidney, and/or vascular dysfunction with lethal pulmonary hemorrhage and sometimes death, is called:
a. icteric leptospirosis.
b. anicteric leptospirosis.
c. Vincent's disease.
d. syphilis.
This organism, belonging to the family Enterobacteriaceae, grows best at 25C to 30C. Domestic and wild rats and other animals can carry this organism. What is the medium of choice?
a. MacConkey agar
b. Xylose-lysine-deoxycholate (XLD) agar
c. Cefsulodin-irgasan-novobiocin (CIN) agar
d. Hektoen enteric (HE) agar
A nontreponemal flocculation serologic test in which soluble antigen particles are coalesced to form larger particles that are visible as clumps when they are aggregated by antibody is called the __________ test.
a. nontreponemal flocculation (NTF)
b. FTA-ABS
c. VDRL
d. TP-PA
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