Questions and Answers (UTA) Rated A+
Q1. Which vitamin deficiency is most associated with rickets in children?
A. Vitamin A
• B. Vitamin D
C. Vitamin C
D. Vitamin K
Rationale: Vitamin D deficiency impairs calcium absorption, leading to defective bone
mineralization and rickets.
Q2. At what age should infants be introduced to solid foods?
A. 2 months
B. 4 months
• C. 6 months
D. 9 months
Rationale: Exclusive breastfeeding is recommended until 6 months; solids are
introduced thereafter to meet nutritional needs.
Q3. The first dose of MMR vaccine is recommended at:
A. 6 months
B. 9 months
• C. 12–15 months
D. 18 months
Rationale: CDC and AAP guidelines recommend the first MMR dose at 12–15 months,
with a second dose at 4–6 years.
Q4. Which vaccine is given at birth?
• A. Hepatitis B
B. Rotavirus
C. DTaP
D. Hib
Rationale: Hepatitis B is the only vaccine routinely administered at birth.
Q5. A child should be able to sit without support by:
A. 4 months
B. 6 months
• C. 8 months
D. 12 months
Rationale: Independent sitting typically occurs around 8 months.
Q6. At what age should a child be able to use two-word sentences?
A. 12 months
B. 18 months
, • C. 24 months
D. 36 months
Rationale: By 2 years, children combine words into simple phrases, marking a key
language milestone.
Q7. At what age should a child be able to ride a tricycle?
A. 2 years
• B. 3 years
C. 4 years
D. 5 years
Rationale: Gross motor skills at 3 years include pedaling a tricycle.
Q8. A 4-year-old should be able to:
A. Copy a circle
B. Copy a triangle
• C. Draw a square
D. Write their name
Rationale: By age 4, children can copy a square; triangle comes later (~5 years).
Q9. Toilet training is usually achieved by:
A. 12 months
B. 18 months
• C. 24–36 months
D. 48 months
Rationale: Most children achieve daytime bladder control between 2–3 years.
Q10. Which reflex disappears last in infants?
A. Moro
B. Rooting
• C. Babinski
D. Palmar grasp
Rationale: Babinski reflex persists until ~12–24 months; others fade earlier.
Q11. Menarche typically occurs at:
A. 9 years
B. 10 years
• C. 12–13 years
D. 15 years
Rationale: Average onset of menarche in the U.S. is 12–13 years.
Q12. The leading cause of death in adolescents is:
A. Cancer
B. Infectious disease
• C. Unintentional injury/accidents
D. Cardiovascular disease