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Test Code FSOM1 Somatostatin (Somatotropin Release-Inhibiting Factor, SRIF)

Additional Codes

Epic Ordering Code LAB3041971
NBS code LBC12450
Service code 37163

Reporting Name

Somatostatin (Plasma)

Specimen Type

Plasma EDTA


Specimen Required


Patient Preparation:

1. Fasting: 10 to 12 hours

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.

Supplies: GI Preservative (T125)

Collection Container/Tube:

Preferred: Lavender top (EDTA)

Acceptable: GI preservative tube

Submission Container/Tube: Plastic vial

Specimen Volume: 3 mL plasma

Collection Instructions:

1. Centrifuge as soon as possible and aliquot 3 mL of plasma into a plastic vial.

2. Freeze plasma immediately after separation

3. Send frozen.


National University Hospital-Singapore Note:

NUH Outreach Laboratories:
Specimen Requirements
Submit only one of the following:
Container: Purple Top
Processing Requirements
Centrifuge and aliquot plasma into a Mayo plastic tube. Freeze immediately
Specimen type: Plasma
Volume: 3 mL
Storage/transport requirements: Frozen

Specimen Minimum Volume

Plasma: 1 mL

Specimen Stability Information

Specimen Type Temperature Time
Plasma EDTA Frozen (preferred) 180 days
  Refrigerated  7 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject

Method Name

Direct Radioimmunoassay

Day(s) Performed

Monday through Friday

Report Available

9 to 11 days
National University Hospital-Singapore Note:

Please note that this is a referral test requiring transport to the external testing facility and an additional 3-5 days is required.

Reference Values

Up to 25 pg/mL

Performing Laboratory

Inter Science Institute

CPT Code Information

84307

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FSOM1 Somatostatin (Plasma) 2961-1

 

Result ID Test Result Name Result LOINC Value
FSOM1 Somatostatin (Plasma) In Process

Secondary ID

75906

Test Classification

This test has not been cleared or approved by the US Food and Drug Administration. This test was developed and its performance characteristics determined by Inter Science Institute. Values obtained with different methods, laboratories, or kits cannot be used interchangeably with the results on this report. The results cannot be interpreted as absolute evidence of the presence or absence of malignant disease.
National University Hospital-Singapore Additional Information:

Last updated 06/08/2026