Would you recommend delaying a 24 hour urine stone risk study until a patient is off of antibiotics if they are on a short course for an upper respiratory infection but are experiencing no medication side effects?

If the patient is eating and drinking as usual, I would have no reservation collecting a 24-hour urine supersaturation study during the illness. I am not aware that antibiotics would affect the volume or mineral content of the specimen.

Stephen B Erickson, MD