Formulas

Question 0

Estimated No. of teeth

Answer 0

age (mos) - 6

Question 1

Head circumference

Answer 1

0-3 mos: 2 cm/mo
3-6 mos: 1 cm/mo
6-9mos: 0.5 cm/mo
9-12 mos: 0.5 cm/mo
1-3 yrs: 0.25 cm/mo
4-6 yrs: 1 cm/YR

Question 2

Estimated average Height

Answer 2

2-12 yo: height=age (yrs) x 6+77

Question 3

Approximate weight

1-6 mos
6-12 mos
1-6 yrs
7-12 yrs

Answer 3

1-6 mos: age in mos x 600 + BW
6-12 mos: age in mos x 500 + BW
1-6 yrs: (age in yrs x 2) + 8
7-12 yrs: [(age in yrs x 7) -5] /2

Question 4

When do the posterior and anterior fontanels close?

Answer 4

post fontanel: 6-8 wks

ant fontanel: 9-18 mos

Question 5

Midparental Height (in cm)

Answer 5

boys: [(maternal ht + 13) + paternal ht]/2
girls: [maternal ht + (paternal ht-13)]/2

in centimeters