Nursing Elites

1. What is the primary purpose of a placebo in an experiment?

• A. To reduce the cost of the experiment.
• B. To make the experiment double-blind.
• C. To increase the number of participants.
• D. To serve as a control for comparison with the treatment group.

Correct answer: D

Rationale: The correct answer is D. A placebo serves as a control for comparison with the treatment group, helping to eliminate bias and ensure the results are due to the treatment itself. Placebos are crucial in research to distinguish the actual effect of the treatment from psychological or subjective factors. Choice A is incorrect because the purpose of a placebo is not related to reducing the cost of the experiment. Choice B is incorrect because while placebos are used in double-blind studies, their primary purpose is not to make the experiment double-blind. Choice C is incorrect because the purpose of a placebo is not to increase the number of participants but rather to serve as a comparison group for the treatment being tested.

2. What action should be taken for a 2-year-old with laryngotracheobronchitis in an oxygen tent?

• A. Restrain the child and notify the healthcare provider
• B. Increase the oxygen concentration
• C. Take the child to the playroom
• D. Ask the mother to help in comforting the child

Correct answer: B

Rationale: In laryngotracheobronchitis (croup), a child may become restless due to poor oxygenation. Increasing the oxygen concentration in the oxygen tent is crucial to improve oxygenation levels and manage symptoms effectively. Restraint is not appropriate in this situation, as it may cause distress and worsen the child's condition. Taking the child to the playroom is not indicated when the child requires oxygen therapy. While comforting the child is important, the priority in this scenario is to optimize oxygen delivery to improve respiratory distress.

3. What should be a priority for a 4-year-old child with nephrosis?

• A. Impaired body image
• B. Skin impairment
• C. Nutritional deficit
• D. Injury

Correct answer: B

Rationale: The correct answer is B: Skin impairment. Skin care is a priority in nephrosis due to edema and increased risk of skin breakdown, requiring careful monitoring and management. While impaired body image (Choice A) can be a concern, it is not typically a priority in a 4-year-old with nephrosis. Nutritional deficit (Choice C) is important but addressing skin impairment takes precedence due to the immediate risk of complications related to skin breakdown. Injury (Choice D) is a general concern for children but is not the priority in a child with nephrosis.

4. What is a common sign of developmental dysplasia of the hip (DDH) in infants?

• A. Dislocated patella
• B. Limited abduction of the hip
• C. Swelling of the knee
• D. Hyperextension of the leg

Correct answer: B

Rationale: Limited abduction of the hip is a common sign of developmental dysplasia of the hip in infants. It indicates possible hip dislocation or instability, making it a key clinical manifestation to assess for DDH. Dislocated patella (Choice A) is not typically associated with DDH. Swelling of the knee (Choice C) and hyperextension of the leg (Choice D) are not specific signs linked to DDH in infants, further supporting why they are incorrect choices.

5. What is the most common symptom of appendicitis in children?

• A. Vomiting and diarrhea
• B. Fever and abdominal pain
• C. Rash and joint pain
• D. Difficulty breathing

Correct answer: B

Rationale: The correct answer is B: Fever and abdominal pain. In children, appendicitis commonly presents with fever and abdominal pain. The pain typically begins around the umbilicus and then moves to the lower right quadrant. Choices A, C, and D are incorrect because vomiting and diarrhea, rash and joint pain, and difficulty breathing are not typical symptoms of appendicitis in children.

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