Nursing Elites

1. Which is the most frequently used test for measuring visual acuity?

• A. Snellen letter chart
• B. Ishihara vision test
• C. Allen picture card test
• D. Denver eye screening test

Correct answer: A

Rationale: The Snellen letter chart is the most commonly used test for measuring visual acuity, particularly in school-age children and adults.

2. The parent of an 8.2-kg (18-lb) 9-month-old infant is borrowing a federally approved car seat from the clinic. The nurse should explain that the safest way to put in the car seat is what?

• A. Front facing in back seat
• B. Rear facing in back seat
• C. Front facing in front seat with air bag on passenger side
• D. Rear facing in front seat if an air bag is on the passenger side

Correct answer: B

Rationale: Infants should be placed rear-facing in the back seat until they are at least 2 years old or exceed the weight/height limit of their car seat for optimal safety.

3. An infant weighed 8 lb at birth and was 18 inches in length. What weight and length should the infant be at 5 months of age?

• A. 12 lb, 20 inches
• B. 14 lb, 21.5 inches
• C. 16 lb, 23 inches
• D. 18 lb, 24.5 inches

Correct answer: C

Rationale: By 5 months, an infant's weight should typically double from birth, and length should increase by approximately 50%.

4. What is the most critical physiologic change required of newborns at birth?

• A. Transition from fetal to neonatal breathing
• B. Body temperature maintenance
• C. Stabilization of fluid and electrolytes
• D. Closure of fetal shunts in the heart

Correct answer: A

Rationale: The correct answer is A: Transition from fetal to neonatal breathing. The onset of breathing is the most immediate and critical physiologic change required for the transition to extrauterine life. Factors that interfere with this normal transition increase fetal asphyxia, which is a condition of hypoxemia, hypercapnia, and acidosis. While body temperature maintenance, stabilization of fluid and electrolytes, and closure of fetal shunts in the heart are crucial changes in the transition to extrauterine life, breathing and the exchange of oxygen for carbon dioxide must take precedence as they are essential for newborn survival.

5. Which developmental milestone would the nurse expect an 11-month-old infant to have achieved?

• A. Sitting independently
• B. Turning a doorknob
• C. Building a tower of four cubes
• D. Walking independently

Correct answer: A

Rationale: The correct answer is A: Sitting independently. By 11 months, most infants can sit independently. This milestone usually precedes walking, which typically occurs closer to 12 months. Turning a doorknob and building a tower of four cubes involve more complex motor skills that are typically achieved later in development. Therefore, at 11 months, sitting independently is the milestone that the nurse would expect an infant to have achieved.

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