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
Serum: Red top
Minimum Volume
0.3 mL
Transport Temperature
Refrigerated
Stability
Room temperature: 12 hours
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Methodology
Immunoassay
Reference Range
1.5-14.9 uIU/mL
Performing Laboratory
Quest SJC
New York DOH Approval Status
Yes