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NURS 420 Exam 1 Questions with Detailed
Verified Answers
Question: The nurse is assessing the respiratory system of a newborn.
Which anatomic differences place the infant at risk for respiratory
compromise? Select all that apply.
a. The nasal passages are narrower.
b. The trachea and chest wall are less compliant.
c. The bronchi and bronchioles are shorter and wider.
d. The larynx is more funnel-shaped.
e. The tongue is smaller.
f. There are significantly fewer alveoli.
Ans✅ ✅: Answers:
-The nasal passages are narrower
-The larynx is more funnel-shaped
-There are significantly fewer alveoli
Rationale: In comparison with the adult, in the infant, the nasal passages are narrower,
the trachea and chest wall are more compliant, the bronchi and bronchioles are shorter
and narrower, the larynx is more funnel-shaped, the tongue is larger, and there are
significantly fewer alveoli. These anatomic differences place the infant at higher risk
for respiratory compromise. The respiratory system does not reach adult levels of
maturity until about 7 years of age.
Question: At which age would the nurse expect to find the beginning of
object permanence?
a. 1 month
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b. 6 months
c. 9 months
d. 12 months
Ans✅ ✅: Answer: 6 months
Rationale:
Object permanence begins to develop between 4 and 7 months of age and is solidified
by approximately age 8 months. By age 12 months, the infant knows he or she is
separate from the parent or caregiver.
Question: The nurse caring for newborns knows that infants exhibit
phenomenal increases in their gross motor skills over the first 12 months
of life. Which statements accurately describe the typical infant's
achievement of these milestones? Select all that apply.
a. At 1 month, the infant lifts and turns the head to the side in the prone
position.
b. At 2 months, the infant rolls from supine to prone to back again.
c. At 6 months, the infant pulls to stand up.
d. At 7 months, the infant sits alone with some use of hands for support.
e. At 9 months, the infant crawls with the abdomen off the floor.
f. At 12 months, the infant walks independently.
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Ans✅ ✅: Answers:
a. At 1 month, the infant lifts and turns the head to the side in the prone position.
d. At 7 months, the infant sits alone with some use of hands for support.
e. At 9 months, the infant crawls with the abdomen off the floor.
f. At 12 months, the infant walks independently.
Rationale: At 1 month, the infant lifts and turns the head to the side in the prone
position. At 7 months, the infant sits alone with some use of hands for support. At 9
months, the infant crawls with the abdomen off the floor. At 12 months, the infant
walks independently. At 4 months, the infant lifts the head and looks around. At 10
months, the infant pulls to stand up.
Question: The nurse observes an infant interacting with his parents.
What are normal social behavioral developments for this age group?
Select all that apply.
a. Around 5 months, the infant may develop stranger anxiety.
b. Around 2 months, the infant exhibits a first real smile.
c. Around 3 months, the infant smiles widely and gurgles when
interacting with the caregiver.
d. Around 3 months, the infant will mimic the parent's facial movements,
such as sticking out the tongue.
e. Around 3 to 6 months of age, the infant may enjoy socially interactive
games such as patty-cake and peek-a-boo.
f. Separation anxiety may also start in the last few months of infancy.
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Ans✅ ✅: Answers:
b. Around 2 months, the infant exhibits a first real smile.
c. Around 3 months, the infant smiles widely and gurgles when interacting with the
caregiver.
d. Around 3 months, the infant will mimic the parent's facial movements, such as
sticking out the tongue.
f. Separation anxiety may also start in the last few months of infancy.
Rationale: The infant exhibits a first real smile at age 2 months. By about 3 months of
age, the infant will start an interaction with a caregiver by smiling widely and possibly
gurgling. The 3- to 4-month-old will also mimic the parent's facial movements, such as
widening the eyes and sticking out the tongue. Separation anxiety may also start in
the last few months of infancy. Around the age of 8 months, the infant may develop
stranger anxiety. At 6 to 8 months of age, the infant may enjoy socially interactive
games such as patty-cake and peek-a-boo.
Question: A new mother shows the nurse that her baby grasps her
finger when she touches the baby's palm. How might the nurse respond
to this information?
a. "This is a primitive reflex known as the plantar grasp."
b. "This is a primitive reflex known as the palmar grasp."
c. "This is a protective reflex known as rooting."
d. "This is a protective reflex known as the Moro reflex."
NURS 420 Exam 1 Questions with Detailed
Verified Answers
Question: The nurse is assessing the respiratory system of a newborn.
Which anatomic differences place the infant at risk for respiratory
compromise? Select all that apply.
a. The nasal passages are narrower.
b. The trachea and chest wall are less compliant.
c. The bronchi and bronchioles are shorter and wider.
d. The larynx is more funnel-shaped.
e. The tongue is smaller.
f. There are significantly fewer alveoli.
Ans✅ ✅: Answers:
-The nasal passages are narrower
-The larynx is more funnel-shaped
-There are significantly fewer alveoli
Rationale: In comparison with the adult, in the infant, the nasal passages are narrower,
the trachea and chest wall are more compliant, the bronchi and bronchioles are shorter
and narrower, the larynx is more funnel-shaped, the tongue is larger, and there are
significantly fewer alveoli. These anatomic differences place the infant at higher risk
for respiratory compromise. The respiratory system does not reach adult levels of
maturity until about 7 years of age.
Question: At which age would the nurse expect to find the beginning of
object permanence?
a. 1 month
, Page | 2
b. 6 months
c. 9 months
d. 12 months
Ans✅ ✅: Answer: 6 months
Rationale:
Object permanence begins to develop between 4 and 7 months of age and is solidified
by approximately age 8 months. By age 12 months, the infant knows he or she is
separate from the parent or caregiver.
Question: The nurse caring for newborns knows that infants exhibit
phenomenal increases in their gross motor skills over the first 12 months
of life. Which statements accurately describe the typical infant's
achievement of these milestones? Select all that apply.
a. At 1 month, the infant lifts and turns the head to the side in the prone
position.
b. At 2 months, the infant rolls from supine to prone to back again.
c. At 6 months, the infant pulls to stand up.
d. At 7 months, the infant sits alone with some use of hands for support.
e. At 9 months, the infant crawls with the abdomen off the floor.
f. At 12 months, the infant walks independently.
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Ans✅ ✅: Answers:
a. At 1 month, the infant lifts and turns the head to the side in the prone position.
d. At 7 months, the infant sits alone with some use of hands for support.
e. At 9 months, the infant crawls with the abdomen off the floor.
f. At 12 months, the infant walks independently.
Rationale: At 1 month, the infant lifts and turns the head to the side in the prone
position. At 7 months, the infant sits alone with some use of hands for support. At 9
months, the infant crawls with the abdomen off the floor. At 12 months, the infant
walks independently. At 4 months, the infant lifts the head and looks around. At 10
months, the infant pulls to stand up.
Question: The nurse observes an infant interacting with his parents.
What are normal social behavioral developments for this age group?
Select all that apply.
a. Around 5 months, the infant may develop stranger anxiety.
b. Around 2 months, the infant exhibits a first real smile.
c. Around 3 months, the infant smiles widely and gurgles when
interacting with the caregiver.
d. Around 3 months, the infant will mimic the parent's facial movements,
such as sticking out the tongue.
e. Around 3 to 6 months of age, the infant may enjoy socially interactive
games such as patty-cake and peek-a-boo.
f. Separation anxiety may also start in the last few months of infancy.
, Page | 4
Ans✅ ✅: Answers:
b. Around 2 months, the infant exhibits a first real smile.
c. Around 3 months, the infant smiles widely and gurgles when interacting with the
caregiver.
d. Around 3 months, the infant will mimic the parent's facial movements, such as
sticking out the tongue.
f. Separation anxiety may also start in the last few months of infancy.
Rationale: The infant exhibits a first real smile at age 2 months. By about 3 months of
age, the infant will start an interaction with a caregiver by smiling widely and possibly
gurgling. The 3- to 4-month-old will also mimic the parent's facial movements, such as
widening the eyes and sticking out the tongue. Separation anxiety may also start in
the last few months of infancy. Around the age of 8 months, the infant may develop
stranger anxiety. At 6 to 8 months of age, the infant may enjoy socially interactive
games such as patty-cake and peek-a-boo.
Question: A new mother shows the nurse that her baby grasps her
finger when she touches the baby's palm. How might the nurse respond
to this information?
a. "This is a primitive reflex known as the plantar grasp."
b. "This is a primitive reflex known as the palmar grasp."
c. "This is a protective reflex known as rooting."
d. "This is a protective reflex known as the Moro reflex."
