A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Insulin, Total
Test CodeLAB527
Quest Code
561
CPT Codes
83525
Preferred Specimen
1 mL serum
Patient Preparation
Fasting specimen required
Minimum Volume
0.5 mL
Instructions
Unable to add insulin testing unless sample was submitted frozen
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 8 hours
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Plasma • Grossly icteric
Methodology
Immunoassay (IA)
Setup Schedule
A.M. Sets up 5 days a week.
Reference Range
≤18.4 uIU/mL
Adult cardiovascular event risk category cut points (optimal, moderate, high) are based on Insulin Reference interval studies performed at Quest Diagnostics in 2022.
Risk | uIU/mL |
Optimal | ≤18.4 |
Moderate | N/A |
High | >18.4 |
Adult cardiovascular event risk category cut points (optimal, moderate, high) are based on Insulin Reference interval studies performed at Quest Diagnostics in 2022.
Clinical Significance
For diagnosis and monitoring of diabetes and insulin-secreting tumors.
Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130