Proinsulin : 760

Test Code
PINSUL or 760

Alias/See Also
Precursor to Insulin

CPT Codes

Overnight fasting is required.
Serum separator tube.

Transport Container
Centrifuge serum separator tube and aliquot the serum into a standard transport tube, 1 mL (Min: 0.5 mL).

Transport Temperature

Specimen Stability
After separation from cells: Ambient: 24 hours; Refrigerated: 72 hours; Frozen: 90 days

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

Enzyme Linked Immunoassay

Setup Schedule
Monday & Friday

Report Available
5-8 days (From receipt at performing laboratory)

This test was performed using a kit that has not been cleared or approved by the FDA. The analytical performance characteristics of this test have been determined by Quest Diagnostics. This test should not be used for diagnosis without confirmation by other medically established means.

Reference Range
less than or equal to 18.8 pmol/L

Clinical Significance
Proinsulin is used to detect and monitor excessive hormone production from insulinomas.

Performing Laboratory
Quest Diagnostics

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.