A member asked:

Got a urine test while on macrobid. will bacteria show up if they are resistant to macrobid? are negatives likely to be false negatives?

A doctor has provided 1 answer

Urine culture: Bacteria if infecting the urine and are resistant to macrobid will grow out in urine cultures while the patient is taking it. Negative urine cultures mean there is no current bacterial urinary tract infection and are valid.

Answered 11/30/2015

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