Yale New Haven Hospital

Department of Laboratory Medicine
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N-methylhistamine, timed urine

Lab Section: 

Sendout Reference

 

Lab Location: 

Sendout

Reference Lab: 

Mayo

 

Test ID: 

LAB3288

 

Methodology: 

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) Enzymatic Colorimetric Assay

Schedule: 

Tuesday, Thursday

Reported: 

10 days

Specimen Requirements: 

Collection: 5.0 mL Urine in a Yellow Top Tube - Urine.
Pediatric volume: 3 mL.
Plastic, 5-mL tube; No preservative; 24-Hour collection is preferred; 24-hour volume is required
Transport: Refrigerated.
Stability: Refrigerated (preferred): 8 days; Frozen: 14 days; Ambient: 24 hours

 

Notes: 

Clinical Indications: 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

Reference Interval: 

See patient report or consult reference laboratory website.

http://www.mayomedicallaboratories.com/test-catalog/Specimen/83011

CPT Code(s): 

82542

Last Changed: 

11/22/2016 10:07:15

Last Reviewed: 

8/28/2017 7:39:58