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SECTION 1: GROWTH AND DEVELOPMENT
Questions 1-15
Q1. According to the CDC 2026 growth charts, the average birth weight of a full-term newborn is
approximately:
A) 2.5 kg (5.5 lbs)
B) 3.4 kg (7.5 lbs)
C) 4.0 kg (8.8 lbs)
D) 4.5 kg (9.9 lbs)
Answer: B) 3.4 kg (7.5 lbs)
Rationale: Average birth weight for full-term infants is 3.4 kg (7.5 lbs); low birth weight is <2.5 kg.
Q2. A newborn typically regains birth weight by:
A) 3-5 days
B) 7-10 days
C) 14-21 days
D) 28 days
, CERTIFIED PEDIATRIC NURSE (CPN) EXAM ACTUAL EXAM 2026/2027 |
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Answer: B) 7-10 days
Rationale: Newborns typically lose 5-10% of birth weight in the first few days and regain by day 7-10.
Q3. According to the CDC 2026 growth charts, the average length of a full-term newborn is:
A) 45 cm (18 inches)
B) 50 cm (20 inches)
C) 55 cm (22 inches)
D) 60 cm (24 inches)
Answer: B) 50 cm (20 inches)
Rationale: Average length at birth is approximately 50 cm (20 inches).
Q4. An infant's birth weight typically doubles by:
A) 2-3 months
B) 4-5 months
C) 5-6 months
D) 12 months
, CERTIFIED PEDIATRIC NURSE (CPN) EXAM ACTUAL EXAM 2026/2027 |
EXPERT VERIFIED | MOST TESTED | AAP & PNCB GUIDELINES | ANSWERS &
RATIONALES | 100 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
Answer: C) 5-6 months
Rationale: Birth weight doubles by 5-6 months and triples by 12 months.
Q5. The anterior fontanel typically closes between:
A) 2-4 months
B) 4-8 months
C) 8-12 months
D) 12-18 months
Answer: D) 12-18 months
Rationale: The anterior fontanel closes between 12-18 months; delayed closure may indicate hypothyroidism
or increased intracranial pressure.
Q6. The posterior fontanel typically closes by:
A) 2-3 months
B) 4-6 months
C) 6-8 months
, CERTIFIED PEDIATRIC NURSE (CPN) EXAM ACTUAL EXAM 2026/2027 |
EXPERT VERIFIED | MOST TESTED | AAP & PNCB GUIDELINES | ANSWERS &
RATIONALES | 100 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
D) 8-10 months
Answer: A) 2-3 months
Rationale: The posterior fontanel closes by 2-3 months of age.
Q7. According to Piaget's theory of cognitive development, the sensorimotor stage occurs from:
A) Birth to 2 years
B) 2-7 years
C) 7-11 years
D) 11 years and older
Answer: A) Birth to 2 years
Rationale: The sensorimotor stage (birth to 2 years) involves learning through sensory experiences and object
permanence.
Q8. According to Piaget, object permanence develops during which stage?
A) Sensorimotor
B) Preoperational
C) Concrete operational