REF MISC

N-Methylhistamine, Random Urine

Synonyms:
Histamine metabolites
N METHYL U
Performing Lab:
Referral Laboratory
Patient Preparation:

Patient must not be taking monoamine oxidase inhibitors (MAOIs) or aminoguanidine as these medications increase N-methylhistamine levels.

Container Type:
Sterile container (no preservative)
Specimen Type:

Urine (random)

Preferred Volume:
5.0 mL
Minimum Volume:
3.0 mL
Store and Transport:
Refrigerate
Stability:

Refrigerated - 28 days
Room temperature - 28 days
Frozen - 28 days

CPT Codes:

82570, 82542

Method:
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS), Enzymatic Colorimetric Assay
Reference Ranges:
Reflex Test :

Lab Personnel

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