Lab test
IGF-1 Insulin Blood Test – Growth Hormones
This page explains the igf-1 insulin blood test – growth hormones, what it measures, and how to order it. This test measures Insulin-like Growth Factor 1 (IGF-1) to assess human growth hormone (hGH) activity.
What this test is
Insulin-like Growth Factor 1 (IGF-1) is a hormone produced by the liver in response to growth hormone. It plays a crucial role in childhood growth and continues to affect metabolism and tissue repair in adults.
What it measures
- IGF-1 — reflects the body's production of growth hormone
What the test involves
This test requires a standard blood draw. A healthcare professional will collect a small sample of your blood, typically from a vein in your arm.
Why it is often ordered
Clinicians may order this test to help evaluate growth disorders, such as those related to growth hormone deficiency or excess. It can also be used to investigate certain pituitary gland conditions.
Preparation
Please follow the specific preparation instructions provided by the laboratory where you will have your blood drawn. This may include fasting.
How results are reported
Your test results will indicate the level of IGF-1 detected in your blood. Reference ranges, which are the typical values for healthy individuals, vary by laboratory and are usually provided with your report.
Before you go
- Fasting requirements
- Specimen collection time
- How to receive your results
FAQ
Frequently asked questions
What is IGF-1?
IGF-1 stands for Insulin-like Growth Factor 1. It is a hormone that is made by the liver and is influenced by growth hormone. It is important for growth in children and for cell growth and repair in adults.
Why is IGF-1 measured?
IGF-1 levels are measured to help doctors assess growth hormone production and activity. This can help in the diagnosis of conditions related to growth hormone deficiency or excess, as well as certain pituitary gland issues.
Can diet affect IGF-1 levels?
Yes, nutritional status can influence IGF-1 levels. Malnutrition or significant dietary changes can affect your results, which is why fasting may be required before the test.
How do I interpret my IGF-1 results?
Your IGF-1 results will be compared to a reference range provided by the testing laboratory. These ranges can differ between labs. A healthcare provider will interpret your results in the context of your overall health and medical history.
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Locations
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