- NMTHR
N-Methylhistamine, Random Urine
Specimen:
Test Code
NMTHR
Specimen Name
N-Methylhistamine, Random Urine
Collect
Sterile Urine Cup
Submit
5 mLs
Special Handling
—
Rejection Criteria
—
Stability
Refrigerated 28 days
Methodology
—
Performed
Performed Varies - Reported 7-12 days
Reported
—
CPT Codes
- 82542
- 82570
Components
—
Additional Information
Patient must not be taking monoamine oxidase inhibitors (MAOIs) or aminoguanidine as these medications increase N-methylhistamine (NMH) levels. Specimen should be collected within a few hours of symptom onset.
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Common Lab Definitions
- Serum
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