| Methodology: |
Quantitative Spectrophotometry/Enzymatic/Calculation
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| Performed: |
Sun-Sat
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| Reported: |
Within 24 hours
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| Specimen Required: |
Collect: 24-hour urine. Specimen must be refrigerated 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 from a well-mixed 24-hour collection (Min: 0.5 mL) AND 1 mL serum or plasma (Min: 0.2 mL) to individual ARUP Standard Transport Tubes. Record total volume and collection time interval on transport tube and test request form.
Storage/Transport Temperature: Refrigerated.
Unacceptable Conditions: Random urine collections.
Stability (collection to initiation of testing): Serum: (after separation from cells) Ambient: 4 hours; Refrigerated: 1 week; Frozen: 6 months
Urine: Ambient: 24 hours; Refrigerated: 4 days; Frozen: 6 months.
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