Casandra
Casandra Test Code QD04231Version 1 (DRAFT)
Performing Lab
Insulin Response to Glucose, 4 Specimens
Clinical Use
Order TestUse
Evaluation of insulin secretion kinetics by measuring insulin levels at multiple time points after oral glucose administration; used for diagnosing and monitoring insulin-producing tumors such as insulinomas.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Immunoassay
Biomarkers
Insulin
ProteinInsulin level
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
6-9 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
1 mL (each of 4 separate specimens)
Minimum Volume
0.5 mL (each)
Container
serum tube
Collection Instructions
Fasting baseline draw, then oral 75 g glucose load, with timed draws; tubes must be labeled with time drawn.
Patient Preparation
Overnight fasting required.
Causes for Rejection
Received at ambient temperature (instead of frozen)
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 24 hours |
| Refrigerated | 72 hours |
| Frozen | 90 days |
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