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Growth hormone suppression test - Results

Normal Values:

Normal test results show a GH level of less than 1 ng/mL. In children, the levels may be increased due to reactive hypoglycemia.

Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.

The example above shows the common measurement for results for these tests. Some laboratories use different measurements or may test different specimens.

What abnormal results mean:

If the GH levels are not changed and stay high during the suppression test, then the health care provider will suspect gigantism or acromegaly. You may need to be retested at the same time and under the same conditions on another day to confirm the test results.

  • Reviewed last on: 11/7/2009
  • David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Molitch ME. Anterior pituitary. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 242.

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