Insulin concentration (serum/plasma, mass concentration)

Why Is This Test Done?

Your healthcare provider may order this test to evaluate insulin production, detect diabetes or prediabetes, or monitor conditions like hypoglycemia (low blood sugar) or insulin resistance. It could also be used in research or specialized clinical settings to study metabolic processes.

How Is the Sample Collected?

A blood sample is taken from a vein, usually in your arm. You may feel a small pinch when the needle is inserted, but it typically lasts only a few seconds. The sample is sent to a lab for testing.

What Does the Result Mean?

Results can vary widely depending on context (e.g., fasting vs. post-meal) and individual health. High insulin levels might suggest insulin resistance or other metabolic issues, while low levels could indicate insufficient insulin production. Your doctor will interpret results in relation to your symptoms and medical history.

Common Conditions Monitored

This test is often used to diagnose or monitor diabetes, insulinoma (a rare tumor producing excess insulin), or to assess insulin sensitivity in conditions like polycystic ovary syndrome (PCOS). It may also be part of broader metabolic evaluations.