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Order Code CH404
Turnaround Time 4 days
Specimen Requirements
Specimen Source
Transport Container
(Specimen Container)

SST (Tiger Top)

Preferred Specimens
Minimum Volume (uL)
0.5 mL
Collection Instructions
(Transport Temperature)
Transport Frozen
Specimen Stability
Temperature Period
Room temperature Unacceptable
Refrigerated Unacceptable
Frozen 28 days
Reject Criteria

Gross hemolysis, Grossly lipemic, Received thawed, Grossly icteric

Special Instructions

Dietary supplements containing biotin may interfere in assays and may skew analyte results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation. Overnight fasting (12 hours).

Test Details
Immunoassay (IA)
Clinical Significance

Gastrin – For the diagnosis and monitoring of gastrin-secreting tumors, gastric ulcer, Zollinger-Ellison syndrome. Increased in pernicious anemia.

Reference Ranges

Reference range applies to fasting specimen only:
Not established (<5 years)
<65 pg/mL (5-17 years)
≤100 pg/mL (≥18 years)