Insulin, Free and Total

Test Code: TD_5040
CPT Code(s): 83527, 83525

$45

Test Details

Alternative Name(s)

N/A

Test Includes

Insulin Free
Insulin Total

Methodology

Ultrafiltration/chemiluminescent immunoassay

Rejection Criteria

Hemolysis
Heparin Plasma

Reference Range(s)

Total Insulin: 2-21 UIU/ML

Specimen Requirements

Preferred Specimen

Serum separator tube

Minimum Volume

2 mL serum

Sample Stability

8 hours room temperature
1 week refrigerated
1 month frozen

Transport Temperature

Frozen

Collection Instructions

2 mL serum. Allow SST to clot in an upright position for
at least 30 minutes, then centrifuge sample within 2 hours
of collection. Transfer serum to a plastic transport tube.
Freeze. Fasting sample is preferred. When multiple tests
are ordered, submit separate tube for this test.

Alternative Specimen

N/A