|Collection & Request Instructions:||Add 20 mL 6 M HCl to urine bottle (24 hour)|
Urine collected into a plain container will not be accepted. Acid cannot be added following collection.
Drugs to avoid before or during urine collection:
Aldomet, methenamine, methenamine hippurate, levodopa, caffeine, aminophylline, theophylline, ethanol, guanethidine and reserpine.
One day PRIOR to collecting the 24hr urine the patient should abstain from bananas, coffee, pineapple and walnuts.