Developmental Milestones: Infants

Question 1

What age range defines an infant?

Answer 1

1 month - 1 year
(younger than 1 month = newborn)

Question 2

What range of heart rate is expected for an infant?

Answer 2

90-160

Question 3

What range of heart rate is expected for a newborn?

Answer 3

110-160

Question 4

What amount of weight gain per week is expected for an infant?

Answer 4

5-7 oz per week

Question 5

What weight patterns define an infant’s weight relative to their birth weight?

Answer 5

6 months old: double birth weight is expected

1 year old: triple birth weight is expected

Question 6

What language patterns are expected at 3-4 months?

Answer 6

cooing, babbling, laughing

Question 7

At what age do infants begin to pronounce consonant sounds?

Answer 7

8 months

Question 8

At what age do infants begin to associate words with their meanings?

Answer 8

10-11 months

Question 9

At what age are infants expected to be able to speak one meaningful word?

Answer 9

12 months

Question 10

What are two ways a caretaker can promote language development in an infant?

Answer 10

-reading books to the infant
-taking 3 seconds to isolate and define a particular object

Question 11

At what age is head lag expected to have resolved completely?

Answer 11

At 4 months, there should be no head lag in an infant. They should be able to hold their head up without support at this time.

Question 12

At what age are infants expected to be able to roll from front to back?

Answer 12

5 months

Question 13

At what age are infants able to sit with support?

Answer 13

6 months

Question 14

At what age are infants able to sit without support?

Answer 14

8 months

Question 15

At what age are infants able to stand on their hands and feet?

Answer 15

9 months

Question 16

At what age are infants able to stand normally?

Answer 16

12 months

Question 17

At what age does a palmar grasp develop?

Answer 17

5 months

Question 18

At what age are infants able to transfer objects between hands?

Answer 18

6 months

Question 19

At what age are infants able to use a pincer grasp?

Answer 19

9 months

Question 20

At what age are infants able to throw objects?

Answer 20

11 months

Question 21

At what age are infants able to hold a pencil and scribble?

Answer 21

12 months

Question 22

At what age are infants able to walk with support?

Answer 22

11 months

Question 23

At what age are infants able to walk without support?

Answer 23

12 months

Question 24

What stage of Piaget’s developmental theory are infants in?

Answer 24

Sensorimotor (0-24 months)
-object permanence develops over time
-separation anxiety develops around 6 months as an expected finding
–use senses to explore environment

Question 25

What stage of psychosocial development (Erickson's) are infants in?

Answer 25

Trust vs. Mistrust (0-12 months) -trust between infant and caregiver(s) is especially important during this time

Question 26

How many hours (not including naps) should infants sleep by 3-4 months?

Answer 26

9-11 hours

Question 27

At what age should infants be expected to sleep through the night?

Answer 27

12 months

Question 28

When do deciduous teeth (baby teeth) emerge and in what order?

Answer 28

On average, babies teeth emerge around 8 months. --range is 6-10 months --bottom two front teeth emerge first, then top two front teeth

Question 29

What are signs an infant is teething?

Answer 29

--pulling on ears --irritable --does not want to eat solid foods --drooling --sleeping difficulties --sucking on hands or other objects

Question 30

At what age is ibuprofen okay to give an infant?

Answer 30

6 months --do not give ibuprofen to an infant younger than 6 months --acetaminophen is alternative --do not use either for longer than 3 days at a time

Question 31

What is the first sign of dehydration

Answer 31

Tachycardia