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HelpTest Code LAB20967 Histamine, 24-Hour Urine
Department
Send Outs
Reference Lab Test Number
HI24U
Collection Requirements
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.
Refer To
Warde Medical LaboratoryPrimary Collection Container
24 HR Urine container
Transport
Urine Refrigerated
Preferred Transport Temperature
Refrigerated
Processing
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.
Stability
Room temperature: 48 hours
Refrigerated: 14 days
Frozen: 14 days
Minimum Testing Volume
2.0 mL
Reference Range
Histamine, 24 hour urine: 0.006 – 0.131 mg/24h
Creatinine: See report
Methodology
Immunoassay
Performed
Tuesday, Friday
Reported
4-8 days
CPT Codes
83088
Unacceptable Conditions
Random urine