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Methodology: Chemiluminescent Immunoassay (CLIA)
Edit Date: 4/18/2010
Performed: Daily
Released: Same day as tested
CPT Code: 82941
Specimen Collection Details
Collection: One 7.5 mL serum separator tube (SST). Also acceptable: One 5 mL red top tube. Patient must be fasting for 10 hours or longer for basal serum gastrin levels.
Handling: Allow to clot, centrifuge and separate serum from cells within one hour. Freeze immediately. Allow no more than one freeze/thaw cycle. If multiple tests are ordered, send a separate specimen for this test.
Stability: 4 hours refrigerated at 2-8° C or 30 days frozen at -20° C.
Standard Volume: 1 mL serum.
Minimum Volume: 0.5 mL serum.
Transport: Frozen on dry ice.
Comments: Measurement of the major forms of gastrin or immunoreactive gastrin in serum is the definitive test for the diagnosis of gastrinoma in patients with gastric acid hypersecretion.
Rejection Criteria: Hemolysis; lipemia; specimen which has been frozen and thawed more than once.

0-100 pg/mL

PeaceHealth Laboratories