Pediatric Endocrinology

Question 1

What does a growth curve plot?

Answer 1

Height
Weight
Height-for-Weight
BMI

Question 2

What is required for evaluating the growth pattern of a child?

Answer 2

Multiple points on the growth curve
Accurate measures
Nationality
Any known problems (genetic syndromes)

Question 3

When using a Birth-36 month growth curve, what position is a child in?

Answer 3

Supine

Question 4

When using a 2-20y growth curve, what position is a child in?

Answer 4

Standing

Question 5

Underweight, Normal, Overweight, and Obese BMI ranges

Answer 5

Underweight- <18.5
Normal- 18.5-24.9
Overweight- 25-29.9
BIIIG BOI- >30

Question 6

Average linear growth velocity in the first 4 years

Answer 6

7cm/year

Question 7

Average linear growth velocity from 4-6y

Answer 7

6cm/year

Question 8

Average linear growth from 6y-puberty

Answer 8

at least 5cm/year

Question 9

When is peak velocity of linear growth reached?

Answer 9

13. 5 for boys

11. 5 for girls

Question 10

Your patient’s parents, who are big football fans, want to know if their son is gonna be a 6’5” phenom. They are 5’9 and 5’4, respectively. What is an estimate of their son’s height?

Answer 10

[(69”+64”)+5]/2= 5’9

Sorry, ain’t likely. If it were a girl, subtract 5 instead

Question 11

If weight falls on a growth curve, what should you expect as the cause?

Answer 11

Nutrition-based

Question 12

If height falls on a growth curve, what should you expect?

Answer 12

Endocrine issue

Question 13

What is bone age and why is it useful?

Answer 13

Gives an estimate of skeletal maturation, and helps evaluate growth potential. Can distinguish “late bloomers” from other pathologies.

Question 14

A mother brings in her baby at 18 months, worried she is losing weight. On evaluation, she has lost 18% from the last check-up. What do you tell the mom?

Answer 14

Correction of up to 25% in either direction can be normal after introduction to table food and decreased breast feeding. The child is trying to reach their genetically determined percentile

Question 15

What age should the final growth curve be reached?

Answer 15

24m

Question 16

What matters more, the percentile of the baby or the curve on which they grow?

Answer 16

The curve. If they are trending normally, not a big deal

Question 17

What would be seen on a growth curve in a precocious baby?

Answer 17

Jump in growth prior to normal puberty age, and then a rapid leveling off below the normal curve

Question 18

Definition of short stature

Answer 18

2 SD’s below average height/weight for age

Question 19

What should you def order in evaluating a short baby?

Answer 19

IGF and IGFBP-3

Question 20

Most common genetic cause of short stature in females

Answer 20

Turner Syndrome