Growth hormone stimulation test
Alternate Names : Arginine test, Arginine-GHRH test
Normal Values
- Normal peak value -- at least 10 ng/mL
- Indeterminate -- 5 - 10 ng/mL
- Subnormal -- 5 ng/mL
(A normal value rules out hGH deficiency; in some laboratories, the normal level is 7 ng/mL.) Note: ng/mL = nanogram per milliliter. Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What do Abnormal Results Mean?
If this test does not raise GH levels, there is a reduced amount of hGH stored in the anterior pituitary. In children, this results in growth hormone deficiency. In adults, it may be associated with panhypopituitarism or adult growth hormone deficiency.
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