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N-Methyl Histamine

Source Urine
Mnemonic MISCREFNON and U24H

Misc Ref Non-Blood Test Name Prompt: N-Methyl Histam
Specimen Requirements

Submit 5 mL aliquot of 24 hour urine specimen with no preservative.

24 hour urine is preferred, random urine specimens are also acceptable.

CLS staff: Proceed with specimen collection and transport to DSC Accession. DSC Referrals will oversee the physician approval process. 

Note to ordering physician: this test requires review and approval by CLS Medical & Scientific Staff.  Please contact CLS Referrals 403-770-3285 for further information on the approval process. 

 

Specimen Handling PSC & RRL:
Transport on ice to DSC. Send specimen in a separate bag with a photocopy of the requisition.

Extra-regional:
Freeze prior to transport to DSC. Send specimen in a separate bag with a photocopy of the requisition.
Additional Information Patient should have no histamine-rich foods during the 24 hour collection period, including: alcohol (especially beer & wine), fermented foods (sauerkraut), chocolate, egg whites, strawberries, shellfish, tomatoes and citrus fruits.
Testing Location
Testing Frequency Mayo Clinic
Alternate Name(s) Histamine Metabolites
Reference Interval