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Mnemonics

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The document discusses different formulas to calculate ideal body weight and weight changes at different ages based on factors like birth weight and current age.

Formulas include weight in grams/kilograms based on age in months/years plus birth weight and weight in pounds based on age in years plus a constant.

Weight usually doubles by 4-5 months and increases to 3, 4, 5, 6, 7 and 10 times birth weight by ages 1, 2, 3, 5, 7 and 10 years respectively.

Mnemonics

By Carmina Janna M. Monzon

From 1-6 years old

<6 months

6-12 months

Weight in grams = Age in months x 600 + Birth Weight

Weight in grams = Age in months x 500 + Birth Weight

>= 2 years

Weight in kilogram = Age in years x 2 + 8

Weight in pounds = Age in years x 5 + 17

6-12 years

Weight in pounds = Age in years x 7 + 5

Ideal Body Weight


Age
0 5 months

Weight in grams = Age in months x 600 + Birth


Weight

6-12 months

Weight in grams = Age in months x 500 + Birth


Weight

1-6 years

Weight in kilogram = Age in years x 2 + 8


Weight in pounds = Age in years x 5 + 17

7-12 years

Weight in kilograms = Age in years x 7 + 2


Weight in pounds = Age in years x 7 + 5

Usual Changes in Weight at Different Ages


Age
4-5 months

2x birth weight

1 year

3x birth weight

2 years

4x birth weight

3 years

5x birth weight

5 years

6x birth weight

7 years

7x birth weight

10 years

10x birth weight

Length/Height
Age

Centimeters

Inches

At birth

50

20

1 year

75 or 1 x Birth
Length

30

2 years

mature height
(boys)

3 years

36

4 years

2 x Birth length

40

2-12 years

Age x 5 + 80

Age x 2 + 32

13 years

3 x Birth length

Feet

The average birth length is 50 cm. or 20 inches. The velocity of


growth diminishes as the infant grows older. Total average gains in
length during the first year reach about 25 cm. distributes as follows:
Age
From birth to 3 months

9 cm

3-6 months

8 cm

6-9 months

5 cm

9-12 months

3 cm

Head Circumference
Age

Monthly or Yearly

At birth

35 cm (13.8 inches)

< 4 months

inch per month

2 inches

5-12 months

inch per month

2 inches

2 years

Total

1 inch

3-5 years

inch per year

1.5 inches

5-20 years

inch per 5 years

1.5 inches

Head Circumference

Must be followed up regularly during the first 3 years of life

First indication of disturbances of the skull and its contents

Increases in Head Circumference


Age

Total

First 4 months

inches / month

2 inches

Next 8 months

inches / month

2 inches

2 years

1 inch

1 inch

3-5 years

inches/year

1.5 inches

6-20 years

inches / 5 years

1.5 inches

Correction Factors for the Determination


of Head Circumference
Boys

Girls

Inch

Cm

Inch

Cm

Birth

0.6

1/3

0.8

6 weeks

0.6

0.6

6 months

1/8

0.3

1/8

0.3

10 months

1/10

0.3

1/10

0.3

Two Content Layout with Table

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Group 1

Group 2

Class 1

82

95

Class 2

76

88

Class 3

84

90

Title and Content Layout with SmartArt

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1
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Section Header
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Subtitle

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