Casandra
Casandra Test Code QD13198Version 1 (DRAFT)
Performing Lab
Insulin, Free (Bioactive)
Also known as: Biologically Active Insulin, Free Insulin, Non-AB Bound Insulin
Clinical Use
Order TestUse
The free insulin measurement is helpful in interpreting blood sugar concentration and its relationship to insulin injections in insulin‑treated patients with insulin antibodies.
Special Instructions
Overnight fasting is required.
Limitations
Insulin analogues may demonstrate non‑linear cross‑reactivity in this assay. Interpret results accordingly. Insulin levels vary widely in specimens taken from non‑fasting individuals.
Test Details
New York Approved
Methodology
Immunoassay (IA)
Biomarkers
Insulin, Free (Bioactive)
AnalyteInsulin, Free (Bioactive) • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
LOINC Codes
Result Codes
- 6901‑3
Result Turnaround Time
3-7 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.3 mL
Container
Serum separator tube (red‑top)
Collection Instructions
Overnight fasting is required.
Patient Preparation
Overnight fasting is required.
Causes for Rejection
Hemolysis; Received room temp
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 12 hours |
| Refrigerated | 7 days |
| Frozen | 28 days |