CITRIC ACID, URINE

Mnemonic

CITRICU

Specimen Collection Requirements

Collect

Urine, 24-hour or random collection container refrigerate during collection

Handling

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.

Preferred Volume

4.0 mL

Minimum Volume

0.5 mL

Stability

Ambient: 8 hours; Refrigerated: 1 week; Frozen: Indefinitely

Testing Information

Performed

7 days/week

Reported

2-3 days

Method

Enzymatic

Referral Lab

ARUP (20852)

Reference Values

Reference Values

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

CPT Codes

82507

Last Updated: Thursday, January 5, 2017 03:42:04 AM