Purpose
Endocrinology
Method(s)
High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS)
Suggested CPT Code(s)
83789
New York State Approval Status

Not Approved

Turnaround Time

8 days

Test Includes
1 Norepinephrine High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) mcg/24 hr 8 Catecholamine

Specimen Type
24 Hour Urine
Requested Volume
0.5 mL
Minimum Volume
0.3 mL
Special Handling
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.
Please provide:
(1) Total urine volume; and
(2) Collection Start and End Date/Time OR the Collection Time Interval.
Specimen Container
NMS Labs has no experimental or literature-based data regarding the choice of specific specimen collection containers for this test.

Additional Collection Instructions

Transport Temperature
Refrigerated
Light Protection
Not Required
Rejection Criteria
Received Room Temperature.

Rejection criteria pertain to clinical specimen submissions only.

Stability
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.
1 Norepinephrine High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) mcg/24 hr 8 Catecholamine

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