Reference Interval:
Male:
0-6 years: 0.10-8.80 ng/mL
7-17 years: 0.03-14.90 ng/mL
18 years and older: 0.01-1.00 ng/mL
Female:
0-6 years: 0.10-8.80 ng/mL
7-17 years: 0.06-23.80 ng/mL
18 years and older: 0.03-10.00 ng/mL
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| Interpretive Data: |
Growth hormone stimulation tests should induce a peak of greater than 7 ng/mL in children and greater than 5 ng/mL in adults; lower values suggest growth hormone deficiency. For children, some experts consider values of 7-10 ng/mL equivocal and only peak values of greater than 10 ng/mL as truly normal.
For suppression testing, normal subjects have growth hormone concentrations of less than 1 ng/mL within 2 hours of ingestion of a 75 or 100 gram glucose dose. Patients with acromegaly fail to show normal suppression.
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| CPT Code(s): |
83003
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Cross References: |
Human Growth Hormone, 0 Minutes |