Specimen Collection Requirements
Urine, 24-hour or random collection container refrigerate during collection
Aliquot from a well-mixed 24-hour or random urine collection. Adjust pH to less than or equal to 2 by adding 6M hydrochloric acid. Specimens previously preserved with boric acid are acceptable. Record total volume, collection time interval and pH on specimen and test request form.
Ambient: 8 hours; Refrigerated: 1 week; Frozen: Indefinitely
18 years and older: 320-1,240 mg/d
Citric Acid/Creatinine Ratio, Urine 1 year and older: Greater than or equal to 150 mg/g
Thursday, March 14, 2019 12:50:30 PM
Client Services: 503-413-1234