Overview

The IGF-1 test measures the level of insulin-like growth factor 1 in the blood. IGF-1 is a hormone that plays an important role in growth and development. This test is usually performed through a blood draw, and the results can help diagnose growth hormone deficiency or excess, as well as some other medical conditions. The test is often ordered by endocrinologists or pediatricians.

Who should do this test?

Children with short stature: IGF-1 test is done in children who are shorter than average for their age to assess their growth hormone levels. Low levels of IGF-1 can indicate growth hormone deficiency, which can be treated with hormone therapy.

Adults with suspected growth hormone deficiency: IGF-1 test is also done in adults with symptoms of growth hormone deficiency such as fatigue, decreased muscle mass, and decreased bone density. Low levels of IGF-1 can indicate growth hormone deficiency, which can be treated with hormone therapy.

People with acromegaly: IGF-1 test is done in people with acromegaly, a condition where the body produces too much growth hormone. High levels of IGF-1 can indicate acromegaly, which can be treated with medication, surgery or radiation therapy.

What to do if the test is abnormal?

Consult with a medical professional: If the result of an IGF-1 test is abnormal, it is important to consult with a medical professional. This may be your primary care physician, an endocrinologist, or a specialist in hormone disorders. They can help interpret the results and recommend appropriate next steps.

Further testing: Depending on the specific result of the IGF-1 test, further testing may be necessary to determine the underlying cause of the abnormality. Additional blood tests, imaging studies, or other tests may be ordered to help diagnose and treat the condition.

Treatment: Treatment will depend on the underlying cause of the abnormal IGF-1 result. For example, if the result is due to a growth hormone deficiency, treatment may involve hormone replacement therapy. If the result is due to a tumor or other medical condition, treatment may involve surgery, radiation therapy, or medication. Your medical professional will work with you to develop an appropriate treatment plan based on your specific needs and circumstances.

What is the normal range of Somatomedin C (IGF-1)?

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