Growth Flashcards
Twice birth weight
4 months
Triple the birthweight
1 year
1.5x birth LENGTH
1 yera
Half of adult height
2 years
Twice birth length
4 years
Triple the birth length
13 years
What happens at first birthday?
Triple the birthweight
1.5x the birth length
Estimation of weight for 1-6 months
Weighht in grams = (age in months x 600) + Birthweight (BW)
Estimation of weight for 7-11 months
Weight in grams = (age in months x 500) + BW
Estimation of weight in 1-6 years old
Weight in kg = (age in years x 2) + 8
Estimate the weight of 3 months with birthweight of 3,000 grams
4,800 grams
Estimate the weight of a 5 month with BW of 3,000g
6,000 grams
Estimate the weight of an 8 month old with BW of 3,000
7,000 grams
Estimate the weight of a 11 month old baby with bw of 3000grams
8,500 grams
Estimate the weight of a 1 year old
10kg
Weigt in kg = (age in years x 2) +8
Estimate weight of a 3 year old
14kg
Estimate weight of 5 year old
18 kg
Lenth estimataion
0-3 months: 9cm 4-6 months: 8cm 6-9 months: 5cm 10-12 months: 3cm Ave gain in length during 1ts year: 25cm
How to estimate height in cm
Ht in cm = (agin in years x 5) +80
How to estimate ht in inches
Ht in inches = (age in years x 2) + 32
Discuss head circumference
At birth 33-35 cm
Taken up to 3 years old
Attained 90% of adult head size by age 2
Approimated adult head at 6 years old
Discuss teeth
of teeth = age in months - 6
Suspect THYROID DISORDER if no teeth by 13 months
Usually begins at 6 months
Central mandibular incisors
All 20 primary teeth have erupted by 3y/o
Estimate length of 5 months with birth length of 50cm
Around 64cm (59cm @ 3 months) From 4-6 months, total of 8cm Divide 8cm by 3 = 2.67 cm per month ~ 2.5 cm So by 5 months, 59cm + 5cm patient would be ~ 64cm
Estimate length of 11 months with birth length of 50cm
Around 74cm (72cm @ 9 months) From 9-12 months, total of just 3cm Divide 3cm by 3 = 1 cm per month So by 11 months, 72cm + 2cm patient would be ~ 74cm
