Insulin CPT: 83525
Expected Turnaround Time
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
0.3 mL (Note: This volume does not allow for repeat testing.)
Red-top tube or gel-barrier tube.
If a red-top tube is used, transfer separated serum to a plastic transport tube. Avoid hemolysis.
To help evaluate insulin production by the beta cells in the pancreas; to help diagnose the presence of an insulin-producing tumor in the islet cells of the pancreas (insulinoma); to help determine the cause of low blood glucose (hypoglycemia); to help identify insulin resistance, or to help determine when a type 2 diabetic might need to start taking insulin to supplement oral medications.
When you have low blood glucose levels with symptoms such as sweating, palpitations, dizziness, fainting; when you have diabetes and your healthcare practitioner wants to monitor your insulin production; sometimes when it is suspected that you have insulin resistance.
A blood sample drawn from a vein in your arm.
Typically, you will be asked to fast for 8 hours before the blood sample is collected. Occasionally, a healthcare practitioner may do testing when fasting is not possible, such as when a glucose tolerance test is done. In some cases, a healthcare practitioner may request that you fast longer than 8 hours.