Test Details

Mnemonic

UHISQ

Ordering Code

3423800

CPT-4 Code(s)

83088

Specimen Information

Patient Preparation

Patient should refrain from taking allergy causing drugs, antihistamine, oral corticosteroids and substances which block HZ receptors for at least 24 hours prior to specimen collection. Avoid direct sunlight.

Collect

24 hour urine (refrigerate during collection)

Specimen Preparation

Collect 24 hour urine, keep sample refrigerated during collection. Mix urine well and acidify urine with 10.0 mL 6NHCl. Mix well and send 4.0 mL acidified urine in a screw capped plastic vial.

Alternate Specimen

Urine with no preservative

Minimum Volume

2.0 mL

Transport Temperature

Refrigerated

Rejection Criteria

Random urine

Stability

Room temperature: 48 hours
Refrigerated: 14 days
Frozen: 14 days

Methodology

Immunoassay
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Reference Range

Histamine, 24 hour urine: 0.006-0.131 mg/24h
Creatinine: See report
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Performing Laboratory

Quest SJC
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