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N-Methylhistamine

Item Value
Available Stat? No
Test code NMHIN
Performed by Mayo
Sendout? Yes
Method LC-MS/MS
Collection Instructions No preservative required.
Container type Urine container
Amount to Collect 5 mL
Sample type Urine (24 hour or random)
Preferred volume 5 mL
Min. Volume 3 mL
Processing notes Aliquot and freeze specimen. Transport to CB frozen. Order Mayo test code NMHIN.
Units mcg/g Cr
Normal range 30-200
Stability Refrigerated (preferred) 8 days
Frozen 14 days
Ambient 24 hours
Turn around times 3-7 days
Additional information Screening for and monitoring of mastocytosis and disorders of systemic mast-cell activation, such as anaphylaxis and other forms of severe systemic allergic reactions

Monitoring therapeutic progress in conditions that are associated with secondary, localized, low-grade persistent, mast-cell proliferation and activation such as interstitial cystitis
CPT coding 82542-90
LOINC code 44340-8
Last Updated 8/3/2016 1:25:47 PM
Entry Number 1742
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