INSULIN, TOTAL

Message

Serum is the only acceptable sample type. Centrifuge within 2 hours of collection and refrigerate.

Test Code

INS

CPT Codes
83525

Preferred Specimen

1 Gold tube (gel separator)

Minimum Volume

0.2 mL

Other Acceptable Specimens

1 Red tube

Instructions

Centrifuge for complete separation of serum and red cells within 2 hours of collection, then refrigerate.

Transport Temperature

Refrigerate

Specimen Stability

2-8°C up to 7 days
15-30°C up to 8 hours
Frozen samples are stable

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolysis interferes

Methodology
Chemiluminescent immunoassay

Setup Schedule

M, T, W, Th, F, Sa, Sun

Report Available

Within 24 hours of receipt at the performing laboratory.

Reference Range

1.9 - 23.0 mIU/mL

Clinical Significance

Insulin is utilized in the diagnosis and therapy of various disorders of carbohydrate metabolism including diabetes mellitus and hypoglycemia.

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NCHB2 (Chemistry, Beckman DxI)

Last Updated: June 8, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.