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Test ID FSOMA Somatostatin (Somatotropin Release-Inhibiting Factor, SRIF)

Method Name

Direct Radioimmunoassay (RIA)

Reporting Name

Somatostatin (Plasma)

Specimen Type

GI Plasma

Specimen Required

Patient preparation:

 1. Patient should be fasting 10-12 hours prior to collection.

 2. Patient should not be on any medications that affect insulin secretion or intestinal motility, if possible for at least 48 hours prior to collection.

Specimen Type: Plasma

Container/Tube: EDTA tube containing GI preservative: EDTAGI

Specimen Volume: 1 mL

Collection Instructions: Collect 10 mL of blood in special tube containing G.I. Preservative (T125). Specimen should be separated immediately and send 3 mL plasma frozen as soon as possible.

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
GI Plasma Frozen 90 days

Reference Values

Up to 25 pg/mL

Day(s) Performed

Monday through Friday

Performing Laboratory

Inter Science Institute

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FSOMA Somatostatin (Plasma) 2961-1


Result ID Test Result Name Result LOINC Value
Z0933 Somatostatin, (Plasma) 2961-1

Test Classification

This test was developed and its performance characteristics determined by Inter Science Institute. It has not been cleared or approved by the US Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary.

Report Available

7 to 11 days

NY State Approved