and Answers Test Bank
Origin: Chapter 3, 1
1. The nurse is examining a 10-month-old boy who was born 10 weeks early.
Which finding is cause for concern?
A) The child has doubled his birth weight.
B) The child exhibits plantar grasp reflex.
C) The child's head circumference is 19.5 inches.
D) No primary teeth have erupted yet.
Ans: C
Feedback:
The child's head size is large for his adjusted age (7.5 months), which would
be cause for concern. Birth weight doubles by about 4 months of age.
Plantar grasp reflex does not disappear until 9 months adjusted age.
Primary teeth may not erupt until 8 months adjusted age.
Origin: Chapter 3, 2
2. The nurse is teaching a new mother about the drastic growth and
developmental changes her infant will experience in the first year of life.
Which statement describes a developmental milestone occurring in
infancy?
A) By 6 months of age the infant's brain weighs half that of the adult
brain; at age 12
months, the brain weighs 2.5 times what it did at birth.
B) Most infants triple their birthweight by 4 to 6 months of age and
quadruple their birthweight by the time they are 1 year old.
C) The head circumference increases rapidly during the first 6 months: the
average
increase is about 1 inch per month.
D) The heart triples in size over the first year of life; the average pulse
rate decreases from 120 to 140 in the newborn to about 100 in the
1-year-old.
Ans: A
Feedback:
By 6 months of age the infant's brain weighs half that of the adult brain; at
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, age 12 months, the brain weighs 2.5 times what it did at birth. Most infants
double their birthweight by 4 to 6 months of age and triple their
birthweight by the time they are 1 year old. The head circumference
increases rapidly during the first 6 months: the average increase is about
0.6 inch (1.5 cm) per month. The heart doubles in size over the first year of
life. As the cardiovascular system matures, the average pulse rate
decreases from 120 to 140 in the newborn to about 100 in the 1-year-old.
Origin: Chapter 3, 3
3. 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.
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, 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: A, D, F
Feedback:
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.
Origin: Chapter 3, 4
4.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.' Ans: B
Feedback:
Primitive reflexes are subcortical and involve a whole-body response.
Selected primitive reflexes present at birth include Moro, root, suck,
asymmetric tonic neck, plantar and palmar grasp, step, and Babinski. During
the palmar grasp, the infant reflexively grasps when the palm is touched.
The plantar grasp occurs when the infant reflexively grasps with the bottom
of the foot when pressure is applied to the plantar surface. The root reflex
occurs when the infant's cheek is stroked and the infant turns to that side,
searching with mouth. The Moro reflex is displayed when with sudden
extension of the head, the arms abduct and move upward and the hands
form a "C."
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