Newman HYHO Pediatric Endocrine Flashcards
What information is gathered from a single point on a growth chart?
only gives information about THAT DAY
What’s essential to evaluate the growth pattern on a growth chart?
multiple points. Only way to evaluate if rate of growth is adequate
Range of healthy BMI
18.5 - 24.9
Normal growth velocity for school age children
5cm/year (2 inches/year)
Growth parameter most commonly first affected in children with endocrine growth disorders
length or height is typically affected first
Define “delayed bone age”
a bone age that is 2 standard deviations or more below the chronologic age of the patient is considered delayed
Growth parameters plotted on a growth chart (4)
1) height (or length if <24 months-of age)
2) weight
3) BMI (if >36 months of age)
4) head circumference ( if <24 months of age)
Cause of deviation on growth chart: if height (or length) changes first or most dramatically
think endocrine disorder
Cause of deviation on growth chart: if weight changes first or most dramatically
think calories/nutrition
Cause of deviation on growth chart: if head circumference changes first or most dramatically
think brain/skull/hydrocephalus
short stature definition
height >2 standard deviations below the mean height for age and sex (height would be less than 3rd percentile on growth chart)
Benign causes of short stature (3)
1) familial
2) constitutional
3) idiopathic
describe familial short stature
- parents are small
- grows with normal velocity parameters, they simply plot lower on the growth curve
- *bone age is consistent with chronological age
describe constitutional short stature
- grow at a low normal rate and plot low on the growth curve
- puberty is delayed
- family h/o “late bloomers”
- puberty and growth spurt occur later, end height is normal
- *hallmark = delayed bone age
describe idiopathic short stature
- height greater than 2 standard deviations below the mean height for age
- no endocrine, metabolic, or other Dx present
- no family h/o short stature
- bone age is consistent with chronological age