1|Page
NR328 Exam 1 Pediatric Nursing 2026/2027 Chamberlain
College Actual Exam Questions with Verified Answers Detailed
Rationales Grade A Study Guide
1. At what age does an infant's birth weight typically double?
A. 3 months
B. 6 months
C. 9 months
D. 12 months
Correct Answer: B. 6 months
Rationale: Birth weight typically doubles by 6 months of age and triples by 12 months.
2. At what age does an infant's birth weight typically triple?
A. 6 months
B. 9 months
C. 12 months
D. 18 months
Correct Answer: C. 12 months
,2|Page
Rationale: Birth weight typically doubles by 6 months and triples by 12 months.
3. How much does an infant's length increase during the first year of life?
A. 25%
B. 50%
C. 75%
D. 100%
Correct Answer: B. 50%
Rationale: An infant's length increases by approximately 50% during the first year of life.
4. When does the posterior fontanel typically close?
A. 2-4 weeks
B. 6-8 weeks
C. 10-12 weeks
D. 12-18 months
Correct Answer: B. 6-8 weeks
Rationale: The posterior fontanel typically closes by 6-8 weeks of age. The anterior
fontanel closes later at 12-18 months.
,3|Page
5. When does the anterior fontanel typically close?
A. 2-4 months
B. 4-6 months
C. 6-12 months
D. 12-18 months
Correct Answer: D. 12-18 months
Rationale: The anterior fontanel typically closes between 12-18 months of age.
6. At what age does an infant typically develop head control?
A. 2 months
B. 4 months
C. 6 months
D. 8 months
Correct Answer: B. 4 months
Rationale: Head control typically develops around 4 months of age. Rolling over
develops at 5-6 months, sitting without support at 6-8 months.
7. At what age does an infant typically begin crawling?
A. 4 months
, 4|Page
B. 6 months
C. 9 months
D. 12 months
Correct Answer: C. 9 months
Rationale: Crawling typically develops around 9 months of age. Rolling over develops at
5-6 months, standing and walking at 10-12 months.
8. At what age does an infant typically say 1-2 words?
A. 6 months
B. 9 months
C. 12 months
D. 18 months
Correct Answer: C. 12 months
Rationale: Infants typically say 1-2 words around 12 months of age. Cooing occurs at 2
months, babbling at 6 months, and understanding "no" at 9 months.
9. According to the American Academy of Pediatrics, how long should infants be
exclusively breastfed?
A. 3 months
NR328 Exam 1 Pediatric Nursing 2026/2027 Chamberlain
College Actual Exam Questions with Verified Answers Detailed
Rationales Grade A Study Guide
1. At what age does an infant's birth weight typically double?
A. 3 months
B. 6 months
C. 9 months
D. 12 months
Correct Answer: B. 6 months
Rationale: Birth weight typically doubles by 6 months of age and triples by 12 months.
2. At what age does an infant's birth weight typically triple?
A. 6 months
B. 9 months
C. 12 months
D. 18 months
Correct Answer: C. 12 months
,2|Page
Rationale: Birth weight typically doubles by 6 months and triples by 12 months.
3. How much does an infant's length increase during the first year of life?
A. 25%
B. 50%
C. 75%
D. 100%
Correct Answer: B. 50%
Rationale: An infant's length increases by approximately 50% during the first year of life.
4. When does the posterior fontanel typically close?
A. 2-4 weeks
B. 6-8 weeks
C. 10-12 weeks
D. 12-18 months
Correct Answer: B. 6-8 weeks
Rationale: The posterior fontanel typically closes by 6-8 weeks of age. The anterior
fontanel closes later at 12-18 months.
,3|Page
5. When does the anterior fontanel typically close?
A. 2-4 months
B. 4-6 months
C. 6-12 months
D. 12-18 months
Correct Answer: D. 12-18 months
Rationale: The anterior fontanel typically closes between 12-18 months of age.
6. At what age does an infant typically develop head control?
A. 2 months
B. 4 months
C. 6 months
D. 8 months
Correct Answer: B. 4 months
Rationale: Head control typically develops around 4 months of age. Rolling over
develops at 5-6 months, sitting without support at 6-8 months.
7. At what age does an infant typically begin crawling?
A. 4 months
, 4|Page
B. 6 months
C. 9 months
D. 12 months
Correct Answer: C. 9 months
Rationale: Crawling typically develops around 9 months of age. Rolling over develops at
5-6 months, standing and walking at 10-12 months.
8. At what age does an infant typically say 1-2 words?
A. 6 months
B. 9 months
C. 12 months
D. 18 months
Correct Answer: C. 12 months
Rationale: Infants typically say 1-2 words around 12 months of age. Cooing occurs at 2
months, babbling at 6 months, and understanding "no" at 9 months.
9. According to the American Academy of Pediatrics, how long should infants be
exclusively breastfed?
A. 3 months
