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A 52-year-old male asked:

Can swab test culture test done to check for strep throat be false -ve?

2 doctor answers4 doctors weighed in
Dr. Clarence Grim
Endocrinology 57 years experience
Stept swab: There is no test that is 100% positive or negative. Well maybe if you wanted to ask the question "do parachutes help you survive when you jump of a plane?" This has never been formally tested, that I am aware of, by a proper trial so we don't know the number of false + and negatives.
Dr. Ralph Kingsford
Pediatrics 35 years experience
Strep throat: A rapid strep test could be false negative. A culture, if the specimen is obtained properly, should not have a false neg.

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Last updated May 29, 2017

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