Urea Clearance
| CPT Code(s): | 84545 |
| Specimen Required: | Patient Preparation: Collect:24-hour urine (refrigerate during collection). AND plasma separator tube or serum separator tube, collected within 48 hours of initiating urine collection. Specimen Preparation:Transfer one 3 mL aliquot of urine from a well-mixed 24-hour collection to an RDL Standard Transport Tube. (Min: 0.5 mL) AND transfer 1 mL serum or plasma to an RDL Standard Transport Tube. (Min: 0.2 mL) Record total volume and collection time interval on transport tube and test request form. Storage/Transport Temperature:Refrigerated. Stability:Ambient: 24 hours; Refrigerated: 5 days; Frozen: 1 month |
| New York DOH Approval Status: | This test is New York DOH approved. |
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