Medications: Antibiotic use 24-48 hours before the test may interfere with results.
Diet: Avoid beets, blackberries, rhubarb, asparagus, caffeine.
Supplements: Avoid excessive vitamin C.
Medications: Antibiotic use 24-48 hours before the test may interfere with results.
Diet: Avoid beets, blackberries, rhubarb, asparagus, caffeine.
Supplements: Avoid excessive vitamin C.