Insulin, Three Specimens
Use
The Insulin, Three Specimens test is used to monitor insulin levels in response to glucose administration, helping in the assessment of insulin production and function. The test measures insulin levels at different time intervals after administering a substance like glucola, aiding in the evaluation of insulin sensitivity, the effectiveness of insulin release by the pancreas, and in diagnosing conditions such as insulin resistance or sensitivity issues. It provides clinicians with important information on the patient's response to glucose intake.
Special Instructions
This panel requires drawing multiple tubes at specific time intervals after administering a drug or treatment to the patient. It is essential not to collect this series without contacting the clinician to confirm the test necessity. Patients should be advised to cease biotin supplementation 72 hours before sample collection to avoid interference. Proper labeling with the patient name and time interval is critical.
Limitations
Sample collection from patients consuming high doses of biotin may interfere with test results. Close adherence to the collection instructions for time intervals and patient preparation is necessary for accurate results. Delays in serum separation from cells can affect test performance. Variability in glucose administration method by clinicians could impact insulin level measurements.
Methodology
Other
Biomarkers
LOINC Codes
- 20448-7
- 33816-0
- 33817-8
- 46963-5
- 20448-7
- 46963-5
- 33816-0
- 33817-8
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
2 mL
Minimum Volume
Not provided
Collection Instructions
Separate serum from cells within 45 minutes of venipuncture. Label each tube with patient name and time interval. Submit simultaneously from the same patient on one test request form.
Patient Preparation
Patients should stop biotin consumption at least 72 hours prior to sample collection.
Other tests from different labs that may be relevant