Inactivated/Replace Test
Effective Date
09/19/2023
Included in Report
Replacement Test
Inactivated/Replace Test
Notes
UHISQ QSJC #6825N
Replace by HI24U QSJC #4946
Inactivated Test Details
Mnemonic
UHISQ
Ordering Code
3423800
CPT-4 Codes(s)
83088
Replacement Test Details
Mnemonic
HI24U
Ordering Code
3400771
CPT-4 Codes(s)
83088
Turnaround Time
3 - 7 days
Performed
Tuesday, Friday
Legacy Code
HI24U
Example Report
Specimen Information
Patient Preparation
Patient should refrain from taking allergy causing drugs, antihistamine, oral corticosteroids and substances which block H2 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. Acidify urine with 10.0 mL 6NHCl. Mix well and send 4.0 mL acidified urine in a screw capped container.
Alternate Specimen
24 hour 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
Refrigerated: 14 days
Frozen: 14 days
Methodology
Immunoassay
Reference Range
Histamine, 24 hour urine: 0.006 - 0.131 mg/24h
Creatinine: See report
Creatinine: See report
Performing Laboratory
Quest SJC