Insulin, 60 Minutes

Casandra

Casandra Test Code AR59932Version 1 (DRAFT)

Performing Lab

Lab ARUP LaboratoriesLab Test ID 0070066CPT Code 83525

Also known as: INSULIN 60

Clinical Use

Order Test

Use

The Insulin, 60 Minutes test measures insulin levels in serum to evaluate the patient's insulin response following glucose intake. This test is valuable in assessing insulin secretion and could help diagnose or monitor conditions related to insulin resistance and diabetes. It provides information about how a patient's insulin levels respond within 60 minutes of a glucose challenge, typically performed as part of an oral glucose tolerance test.

Special Instructions

Ensure the specimen is collected in a serum separator tube and allowed to clot completely at room temperature. Separate serum from cells within 2 hours and transfer to an ARUP Standard Transport Tube for transport under frozen conditions. This test is approved for use in New York state.

Limitations

The test may exhibit cross-reactivity with various insulin analogs. It reacts nearly equimolarly with insulin aspart, insulin glargine, and insulin lispro, whereas insulin detemir shows about 50% cross-reactivity. The test has negligible reactivity with insulin glulisine (<3%). Potential interference could arise from improper specimen handling such as hemolysis, or from unacceptable specimen types such as heparinized plasma and I.V./vitreous fluids.

Test Details

New York Approved

Methodology

Immunoassay (CLIA)

Biomarkers

Insulin

Analyte

Insulin Level • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)

LOINC Codes

Result Codes

27379-7

Result Turnaround Time

1 day

Specimen

Serum

Volume

1 mL

Minimum Volume

0.4 mL

Container

ARUP Standard Transport Tube

Collection Instructions

Collect in a serum separator tube. Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours and transfer to transport tube.