Name: Insulin, 2 Hour
Test Name: Insulin, 2 Hour
Health Link Test Code: XINS2
LIS Test Code: 2HINSL
CPT Code(s): 83525
Methodology: Chemiluminescent Immunoassay
Days Performed: Daily, 24 hours.
In-Lab Turnaround Time: 4 hours.
Stat In-Lab Turnaround Time: Not available stat.
Patient should have nothing to eat or drink (except water) for 8-10 hours before test.
Collection Container: Red cap with yellow ring (SST)
Also Acceptable: Red top
The patient ingests a solution containing 75 gm of glucose. A blood specimen is drawn 2 hours post-ingestion.
Collection Volume: 3 mL
Pediatric Collection Volume: 1 mL
If delay in testing, remove from cells, clot, or gel.
Sample Analyzed: Serum
Testing Volume: 1 mL
Pediatric Testing Volume: 0.3 mL
Centrifuge. If a complete barrier has not formed, transfer cell-free serum to plastic vial. Refrigerate.
Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.
0 days and up: 22-79 uIU/mL
The reference interval is based on a 75 gram glucose challenge.
Interpretation Type: Reference Interval