Ordering Recommendation

Aids in the detection of insulinoma. Do not use to diagnose diabetes mellitus.

Mnemonic

INSULIN R

Methodology

Quantitative Chemiluminescent Immunoassay

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status

This test is New York DOH approved.

Specimen Required

Patient Preparation
Collect

Serum separator tube.

Specimen Preparation

Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.4 mL)

Storage/Transport Temperature

Frozen.

Unacceptable Conditions

Heparinized plasma. I.V. fluid. Vitreous fluid. Gray (potassium oxalate/sodium fluoride). Hemolyzed specimens.

Remarks
Stability

After separation from cells: Ambient: 8 hours; Refrigerated: 1 week; Frozen: 1 month

Reference Interval

Not established.

Interpretive Data

This test reacts on a nearly equimolar basis with the analogs insulin aspart, insulin glargine, and insulin lispro. Insulin detemir exhibits approximately 50 percent cross-reactivity. Test reactivity with insulin glulisine is negligible (< 3 percent). To convert to pmol/L, multiply µIU/mL by 6.0. The reference interval for a fasting insulin is 3-25 µIU/mL.

Compliance Category

FDA

Note

Hotline History

N/A

CPT Codes

83525

Components

Component Test Code* Component Chart Name LOINC
0070107 Insulin, Random 20448-7
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

Insulin, Random