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 :