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Item Value
Approval req'd? No
Available Stat? No
Test code GAST
Performed by Quest
Sendout? Yes
Method Chemiluminescence
Patient Preparation Overnight fasting is required, preferably ≥ 12 hours.
Collection Instructions Chill tube on ice prior to collection. Bring to lab on ice immediately after collection.
Container type Red top, or Gold top (on ice)
Amount to Collect 2 mL blood
Sample type Serum
Preferred volume 1 mL serum
Min. Volume 0.5 mL serum
UCSF Rejection Criteria Not delivered on ice. Sample hemolyzed or lipemic.
Processing notes Process immediately. Freeze at -20°C. Order Quest # 478X.
Ref Lab Rejection Criteria Received thawed.
Units pg/mL
Normal range
< 5 years Not established
5-17 years 13-64 pg/mL
≥ 18 year old ≤ 100 pg/mL

Note: reference ranges apply to fasting samples only.
Synonyms Secretin stimulation test
Stability Refrigerated 5 hours, frozen at -20C 1 month.
Turn around times Test performed 3 days a week. Turnaround time: 6-7 days.
CPT coding 82941-90
LOINC code 2333-3
Last Updated 6/21/2016 08:24:02
Entry Number 416
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