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Ask Dr. K
FALSE NEGATIVES FOR STD TESTING?

QUESTION
Are there any supplements or anything that can give a false negative for test results of gonorrhea and chlamydia? I recently had a urine test and the results were†negative for both.

However, I take the supplements NAC (N-Acetyl-L-Cysteine), Turmeric, Alpha Lipoic Acid, Coenzyme Q10, Fish Oil, Vitamin C, Milk Thistle, Beta Carotene, Magnesium, Saw Palmetto and a Multi-Vitamin/Mineral.

ANSWER
Most urine tests using FDA-cleared tests are very accurate (>99%). No test is 100% accurate all the time, however, and rarely a true infection can be missed. Thatís the reason why we recommend that sexually active women under the age of 26 years of age get screened for chlamydia each and every year. Iím not aware that any vitamins and supplements impact the diagnostic urine tests for chlamydia or gonorrhea. Those tests detect DNA and those supplements do not effect DNA detection. However, it is also possible to test for those infections with swabs with genital fluid and cellular samples. If concerned about a false negative test, it may be a good idea to repeat the test and consider a different type of specimen, like a swab.

To get tested for STDs, visit the City Clinic or call the CDC National Hotline for places near you: 1-800-CDC-INFO.

To your health,
Dr. K


   
 
Last modified on Thursday, November 19, 2009.
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