Homeostasis Model Assessment of Insulin Resistance, (Homa IR)

is a calculation used to estimate insulin resistance, a condition where the body’s cells don’t respond well

to insulin. It uses two fasting lab values:

• Fasting glucose

• Fasting insulin

This test helps evaluate metabolic health and detect early risk for:

• Prediabetes

• Type 2 diabetes

• Metabolic syndrome

Instructions

1-Fasting Requirements

• Fast for 8–12 hours before the test (no food, no calorie‑containing drinks).

• Water only is allowed during the fasting period.

• Avoid tea, coffee, juice, gum, or anything with calories.

2- Morning Sample

• The test is usually done in the morning, after the overnight fast.

• Both fasting glucose and fasting insulin must be drawn at the same time for accurate calculation.

3-Medications

• Continue regular medications unless your doctor advises otherwise.

4-Before the Test

• Avoid heavy exercise the night before (can affect insulin).

• Avoid smoking during the fasting period.

• Stay hydrated with water.

5- During the Test

The lab will collect:

• Fasting plasma glucose

• Fasting insulin