Growth hormone (hGH), or somatotropin, is a hormone responsible for normal body growth and development. This test measures the level of growth hormone in your blood.
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What's in the test?
Hormones
Growth hormone
Learn more
Growth hormone (hGH), or somatotropin, is a hormone responsible for normal body growth and development. Growth hormone also plays a role in regulating muscle mass, bone density and lipid metabolism.
How to prepare for your test
Prepare for your Growth Hormone Blood Test by following these instructions. Do not eat or drink anything other than water for 12 hours prior to your test. If you take medication then you are allowed to take it as you would normally. Record any growth hormone supplement use in your medical history. Do not take biotin supplements for two days before this test, discuss this with your doctor if it is prescribed.
Test limitations
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FAQs
What affects growth hormone?
The amount of growth hormone in the blood changes during the day and is affected by exercise, sleep, emotional stress, and diet.
Does growth change throughout the day?
Levels of growth hormone vary widely throughout the day, so a single measurement of growth hormone is of limited use. If you are concerned about growth hormone deficiency, we recommend discussing this with your doctor.
What is hGH?
Growth hormone (hGH), or somatotropin, is responsible for normal body growth, metabolism, protein production in muscle cells, and energy release from the breakdown of fats in the body.