N-Methylhistamine, Urine, 24 HR

Test Code: TD_5969
CPT Code(s): 82542

$29

Test Details

Alternative Name(s)

N/A

Test Includes

N-Methylhistamine, Urine, 24 HR

Methodology

Liquid chromatography-tandem mass spectrometry (LC-MS/MS)

Rejection Criteria

Random urine samples

Reference Range(s)

“Nmeth

Specimen Requirements

Preferred Specimen

24 hr urine collection container

Minimum Volume

3 mL urine

Sample Stability

14 days room temperature
28 days refrigerated
28 days frozen

Transport Temperature

Refrigerated

Collection Instructions

Collect all urine over a 24-hour period in provided container starting from the second void on the first day. Refrigerate urine during collection and record total volume.
Transfer 5 mL urine from a well mixed 24 hour collection to a plastic aliquot tube. Refrigerate.
Note: Monoamine oxidase inhibitors (maois) and aminoguanidine will increase n-methylhistamine levels.

Alternative Specimen

N/A