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N-methylhistamine in urine
Indications:
- evaluation of anaphylaxis
Clinical significance:
- remains elevated in urine for many hours after anaphylaxis
- reflects overall levels of released histamine
Specimen:
- 24 hour urine preferred
Related
N-methylhistamine
Specific
N-methylhistamine in 24 hour urine
General
urine chemistry test
References
- Loinc
- ARUP Consult: Anaphylaxis
The Physician's Guide to Laboratory Test Selection & Interpretation
https://www.arupconsult.com/content/anaphylaxis
Component-of
N-methylhistamine/creatinine in urine