Aid in evaluation of patient with allergic signs and symptoms, such as anaphylaxis. May assist when diagnosing and monitoring mast-cell activation disorders or when evaluating histamine production over a longer time frame.
Quantitative Enzyme Immunoassay
Random or 24-hour urine in a plastic container. Refrigerate during collection.
Transfer a 4 mL aliquot from a well-mixed random or 24-hour collection to an ARUP Standard Transport Tube and freeze immediately. (Min: 1 mL) Record total volume and collection time interval on transport tube and test request form.
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Ambient: Unacceptable; Refrigerated: 6 hours; Frozen: 6 months
Effective February 21, 2012
|Histamine, Urine - ratio to CRT||0-450 nmol/g crt|
|Histamine, Urine, Excretion - 24h||0-60 µg/day|
Laboratory Developed Test (LDT)
If 24-hour urine is submitted, the excretion will be calculated. If random urine is submitted, the result will be reported as Not applicable.
|Component Test Code*||Component Chart Name||LOINC|
|0020207||Creatinine, Urine - per volume||2161-8|
|0070039||Histamine, Urine - per volume||33290-8|
|0070041||Histamine, Urine - ratio to CRT||25925-9|
|2005776||Histamine, Urine, Excretion - 24 h||9410-2|
- urine histamine