Metanephrines Fractionated, 24 Hour Urine Test (7645UH)
||Metanephrines Fractionated, 24 Hour Urine
||Endocrinology; This test is New York State approved.
||High Performance Liquid Chromatography/
TandemMass Spectrometry (LC-MS/MS)
||2 mL 24 Hour Urine
||Plastic container (preservative-free)
||Patient Preparation: If possible, the patient should abstain from medications for 72 hours prior to collection.
Collect: 24-hour or random urine. Refrigerate 24-hour specimen during collection.
Specimen Preparation: Transfer a 4 mL aliquot from a well-mixed 24-hour or random collection to a Standard Transport Tube (Min: 0.5 mL). Stability can be enhanced by adjusting the pH to 2-3 by using an acid such as 6N HCl. Record total volume and collection time interval on transport tube and test request form.
|Light Protection Required
||Room Temperature: 7 day(s)
Refrigerated: 30 day(s)
Frozen (-20 °C): 30 day(s)
|Day(s) Test Set-up / TAT
||[LC-MS/MS] Monday Thursday / 1 day
|Suggested CPT Code
|Test Summary Sheet
*Rejection criteria pertain to clinical specimen submissions only.
**Stated minimum volume allows for a single analysis. Repeat analysis will not be performed.