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.
- Patient Preparation
- Collect
- Random or 24-hour urine in a plastic container. Refrigerate during collection.
- Specimen Preparation
- 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.
- Storage/Transport Temperature
- CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
- Unacceptable Conditions
- Room temperature specimens.
- Remarks
- Stability
- Ambient: Unacceptable; Refrigerated: 24 hours; Frozen: 6 months
Components | Reference Interval |
---|---|
Histamine, Urine - ratio to CRT | 0-450 nmol/g crt |
Histamine, Urine, Excretion - 24h | 0-60 µg/day |
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 |
0097110 | Total Volume | 19153-6 |
0097111 | Hours Collected | 30211-7 |
2005776 | Histamine, Urine, Excretion - 24 h | 9410-2 |
- urine histamine