Citric Acid, Urine CITU
Method(s) | Quantitative Enzymatic | |||||
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Specimen Required | ||||||
Collect | 24-hour urine. Random samples are also acceptable. Refrigerate during collection. | |||||
Transport | 4 mL aliquot from a 24-hour or random collection at 2-8°C. (Min: 0.5 mL) | |||||
Remarks | Adjust pH to less than or equal to 2 by adding 6M HCl. Samples previously preserved with boric acid are acceptable. Record total volume, collection time interval, and pH on transport tube and test request form. |
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Stability | Ambient: 8 hours; Refrigerated: 2 weeks; Frozen: 1 month |
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Schedule | Daily | |||||
Billing Code | 5010243 | |||||
CPTCode | 82507 | |||||
Preferred Specimen Collection Device(s) | ||||||
Reference Interval | ||||||
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