Catecholamines Fractionated, 24 Hour Urine Test (7631UH)
||Catecholamines Fractionated, 24 Hour Urine
||Dopamine; Epinephrine; Norepinephrine
||Endocrinology; Currently this test is not New York State approved.
||High Performance Liquid Chromatography/
TandemMass Spectrometry (LC-MS/MS)
||1 mL 24 Hour Urine
||NMS Labs has no experimental or literature-based data regarding the choice of specific specimen collection containers for this test.
||Add 25 mL of 50% acetic acid or 25 mL of 6N HCl at the start of the collection. Refrigerate immediately. Avoid alcohol, tobacco (including use of nicotine patch), tea and coffee, bananas, citrus fruits and strenuous exercise prior to specimen collection. Avoid medications for 3 days prior to specimen collection.
(1) Total urine volume; and
(2) Collection Start and End Date/Time OR the Collection Time Interval.
|Light Protection Required
||Room Temperature: 2 day(s)
Refrigerated: 14 day(s)
Frozen (-20 °C): Undetermined
Norepinephrine, Epinephrine and Dopamine have demonstrated loss of stability with handling procedures that do not include addition of acid and pH adjustment, even when frozen.
||Received Room Temperature.
|Day(s) Test Set-up / TAT
||[LC-MS/MS] Monday-Friday / 5 days
|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.