Feb 5, 2018




Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Chemistry

Insulin, Random

Insulin, Random (XINST) Chemistry Lab Test

Name: Insulin, Random

Test Name: Insulin, Random

Health Link Test Code: XINST

LIS Test Code: RINSL

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.

Specimen: Blood

Collection Container: Red cap with yellow ring (SST)

Also Acceptable: Red top

Collection Volume: 3 mL

Pediatric Collection Volume: 1 mL

Stability Ambient:

If delay in testing, remove from cells, clot, or gel.

Stability Frozen:

7 days

Sample Analyzed: Serum

Testing Volume: 1 mL

Pediatric Testing Volume: 0.3 mL

Specimen Processing:

Centrifuge. If a complete barrier has not formed, transfer cell-free serum to plastic vial. Refrigerate.

Specimen Transport:

Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.


A reference interval for a random insulin level has not been established.  The reference interval established for a fasting adult is 3-25 uIU/mL.