Which information should the nurse include when providing education to a client undergoing antigen testing for herpes simplex?
A) False positives may occur.
B) False negatives may occur.
C) The test is very sensitive and specific.
D) Results take several days.
A) False positives may occur.
Explanation: A) There are more false positives (positive test results that are inaccurate) with antigen testing (microscopic examination of fluid from lesions for antigens, such as glycoprotein G, found on the viral cells) than other options.
B) There are more false positives (positive test results that are inaccurate) with antigen testing (microscopic examination of fluid from lesions for antigens, such as glycoprotein G, found on the viral cells) than other options.
C) Polymerase chain reaction (PCR) assays (technique for reproducing DNA or RNA from minute quantities of DNA or RNA) for HSV DNA are very sensitive and specific. PCR tests are used for testing lesions and is the preferred test for finding HSV in spinal fluid.
D) Antigen testing is more rapid than a culture, taking only 2-12 hours for results.
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