WhatDoMyLabResultsMean.com

Diabetes / Glucose

Fasting Insulin

CPT 84480Quest 1759LabCorp 010389
When to Seek Prompt Care

No common urgent flag from this test alone. However, if you experience symptoms like extreme thirst, frequent urination, unexplained weight loss, or blurred vision, contact your doctor promptly.

What It Measures

This test checks how much insulin is in your blood. You will not eat before this test. Insulin is a hormone your pancreas makes. It helps your body use sugar for energy.

Why It's Ordered

Doctors often order this test to check how well your body makes and uses insulin. They might order it if they think you could have insulin resistance, prediabetes, or diabetes.

Reference Range

Reference ranges for fasting insulin can vary by laboratory. Your doctor will interpret your results based on your individual health and other factors.

Clinical Reference

Quest: 1759
LabCorp: 010389
CPT: 84480
ICD-10: E03.9, E05.90, R94.6

Medicare covers for thyroid disorder evaluation

Educational purposes only — This information is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your lab results with your healthcare provider.