Table 1.
Data Type | Possible Findings |
---|---|
Clinical and historical | • Neonatal hypoglycemia • Prolonged hyperbilirubinemia or jaundice • Microphallus • Traumatic delivery • Signs of an intracranial lesion • History of cranial irradiation • History of head trauma • Family history of GHD • Craniofacial midline abnormalities • Other signs of pituitary dysfunction |
Auxological | • Growth failure ○ Height more than 3 SDs below the mean for age ○ Predicted height a more than 1.5 SDs b below midparental height c ○ Slow or slowing growth velocity |
Radiographic | • Decreased bone age on plain radiographs • Pituitary or midline abnormalities on MRI |
Biochemical | • Low (<10 µg/L) serum GH concentration after provocation
testing • Abnormal genetic testing |
GH, growth hormone; GHD, growth hormone deficiency; MRI, magnetic resonance imaging.
Calculating predicted height: Extrapolate current height percentile to 19 years of age.58
1 SD = 4.25 cm; 1.5 SD = 6.375 cm; 2 SD = 8.5 cm.58
Calculating midparental height: (Average of mother’s and father’s height) − 13 cm (for girls) or + 13 cm (for boys).58