10 days
Enzymatic (creatinase)/spectrophotometry
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Quantifies creatine excretion. Used in muscle metabolism assessments.
24 hour urine
2 mL aliquot
Plastic urine container, no preservative
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.
| Temperature | Period |
|---|---|
| Frozen | To be determined |