Test Details
Mnemonic
HI24U
Ordering Code
3400771
CPT-4 Code(s)
83088
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.
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
New York DOH Approval Status
Yes