GH Test - Reference Range

Random growth hormone (GH) levels in a healthy person range as follows:

  • Men: < 5 ng/mL or < 226 pmol/L
  • Women: < 10 ng/mL or < 452 pmol/L
  • Children: 0-20 ng/mL or 0-904 pmol/L
  • Newborns: 5-40 ng/mL or 226-1808 pmol/L

GH stimulation test values (using arginine, glucagon, or insulin) are as follows:

  • Normal peak value: >10 ng/mL or >452 pmol/L
  • Intermediate peak value: >5 ng/mL or >226 pmol/L
  • Subnormal peak value: < 5 ng/mL
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