Test Details

Mnemonic

INSF

Ordering Code

3422980

CPT-4 Code(s)

83527

Specimen Information

Patient Preparation

Overnight fasting is required.

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, separate serum from cells and send 0.5 mL serum in a screw capped plastic vial.

Alternate Specimen

Plasma: EDTA
Serum: Red top

Minimum Volume

0.3 mL

Transport Temperature

Refrigerated

Stability

Room temperature: 12 hours
Refrigerated: 7 days
Frozen: 28 days

Methodology

Immunoassay
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Reference Range

1.5-14.9 uIU/mL
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Performing Laboratory

Quest SJC
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