Does taking 1 does of antibiotic before using sample mess up a urine culture? was prescribed macrobid for uti symptoms, gave sample 10 hours later. culture results show no evidence of uti. i still have some symptoms like irritation and freq urination?

It is unlikely that one oral dose of antibiotic caused a urinary sample to become aseptic in a short amount of time. I instruct my patients to give urine samples first and then go to the pharmacy in any case. Other causes of urinary symptoms can include gonorrhea, chlamydia, yeast infection, bacterial vaginosis, trichomonas, and even urinary stones.

There are many other reasons for these symptoms. have your vaginal area checked for inflammation /infection. Drink a moderate amount of water.