Histamine, Urine

General Information

Lab Name
Lab Code: 164
Description: ***This test requires approval by the Lab Medicine resident on-call (206) 598-6190.*** For evaluating patients for diseases of immediate hypersensitivity or mast cell proliferation (mastocytosis), the preferred screening test is serum tryptase (see Lab mnemonic RTRYPT) Test results highly dependent on appropriate sample collection.
Synonyms: Mast Cell Disease, Mastocytosis, Systemic Mastocytosis

Interpretation

Method

Quantitative Enzyme Immunoassay

Ref. Range Notes

Referance Ranges:

Histamine, Urine - ratio to CRT: 0-450 nmol/g crt
Histamine, Urine, Excretion - 24h: 0-60 µg/day

Ordering & Collection

Specimen Type: Urine
Collection: Random or 24 hour urine collection in a plastic container; refrigerate during collection.
Handling Instructions: Separate specimens must be submitted when multiple tests are ordered. Transport to the Laboratory Immediately or refrigerate overnight.
Quantity: requested: 4.5 mL urine
minimum: 1 mL urine

Processing

Processing

Mix urine well, transfer 4mL to a plastic aliquot tube, and freeze immediately at -20°C. Record Total Volume and Collection Interval on transport tube and requisition.

Login: SEND1-FREEZE

RSNDT1: ARUP
RSTYP1: URN
RTSRQ1: ;Histamine (ARUP Test 0070038)

Sendouts, order ARUP Test: 0070038. For timed specimens, indicate the total volume and collection interval in the ARUPConnect login.

Stability: Frozen (Critical): 6 months; Refrigerated: 6 hours*; Ambient: Unacceptable.

*Note: For timed specimens, refrigerate during collection. Sample is stable for 6 hours after the collection is complete.

Performance

LIS Dept Code

Performing Location(s)

Sendout	ARUP Laboratories, Inc. 800-522-2787 500 Chipeta Way Salt Lake City, UT 84108

Frequency

Performed: Tuesday, Saturday. Reported: 1-6 days.

Available STAT?

Billing & Coding

CPT codes
Billing Comments: CPT: 83088; LOINC: 9410-2
LOINC