Documentation of immediate hypersensitivity reactions or diagnosis of patients with systemic mastocytosis. Elevated values are seen in patients with anaphylaxis, with urticaria, or following provocative skin tests.
0.006 - 0.131 mg/24 hour
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
False negatives may occur if collection of the specimen is not performed near the time of allergic reactions.
Days Test Performed
4 - 11 days
Soft Order Code
Histamine, 24 HR Urine
HISTAMINE, 24-HOUR, URINE
Histamine, 24-Hour Urine
Mayo FH24U (57821) (Quest 4946X)
Looking to Order a Test?
We’ve provided helpful links to make ordering easy.
All specimens should be accompanied by a requisition.
Learn about how to properly label and where to ship specimens.
MLabs provides all the supplies necessary for the collection of specimens.
Visit our provider FAQ and learn about common questions to ordering tests.
4 mL aliquot of 24 hour urine collection
2 mL aliquot of 24 hour urine collection
Test sent to Mayo Medical Laboratories; performed by Quest Nichols Institute.