Nursing Elites

1. What physiologic state(s) produces the clinical manifestations of nervous system stimulation and excitement, such as overexcitability, nervousness, and tetany?

• A. Metabolic acidosis
• B. Respiratory alkalosis
• C. Metabolic and respiratory acidosis
• D. Metabolic and respiratory alkalosis

Correct answer: D

Rationale: Both metabolic and respiratory alkalosis can cause overexcitability and nervous system stimulation due to a decrease in ionized calcium levels, which can cause symptoms such as tetany and paresthesias. Acidosis typically has the opposite effect, leading to depression of the nervous system.

2. What is an advantage of the ventrogluteal muscle as an injection site in young children?

• A. Easily accessible from many directions
• B. Free of significant nerves and vascular structures
• C. Can be used until the child reaches a weight of 9 kg (20 lb)
• D. Increased subcutaneous fat, which provides sustained drug absorption

Correct answer: B

Rationale: The ventrogluteal site is free of significant nerves and vascular structures, making it a safer choice for intramuscular injections in young children compared to other sites that may be more prone to complications.

3. What procedure is most appropriate for the assessment of an abdominal circumference related to a bowel obstruction?

• A. Measuring the abdomen after feedings
• B. Marking the point of measurement with a pen
• C. Measuring the circumference at the symphysis pubis
• D. Using a new tape measure with each assessment to ensure accuracy

Correct answer: B

Rationale: Marking the point of measurement ensures consistent and accurate assessments of abdominal circumference, especially important in conditions like bowel obstruction where changes need to be monitored closely.

4. The nurse is caring for an infant who had surgical repair of a tracheoesophageal fistula 24 hours ago. Gastrostomy feedings have not been started. What do nursing actions related to the gastrostomy tube include?

• A. Keep the tube clamped.
• B. Suction the tube as needed.
• C. Leave the tube open to gravity drainage.
• D. Secure the tube with tape.

Correct answer: C

Rationale: Leaving the gastrostomy tube open to gravity drainage prevents the accumulation of air and fluids, reducing the risk of complications such as vomiting or aspiration in the immediate postoperative period. Keeping the tube clamped or suctioning it can lead to pressure buildup, increasing the risk of complications. Securing the tube with tape is important but not the primary action related to the gastrostomy tube in this case.

5. The nurse is admitting a child with severe isotonic dehydration. Which intravenous fluid should the nurse anticipate the doctor to order initially to replace fluids?

• A. 0.9% normal saline
• B. D5 0.2% (1/4) normal saline
• C. D5W
• D. Albumin

Correct answer: A

Rationale: In the case of severe isotonic dehydration, the initial fluid of choice is 0.9% normal saline. This solution is preferred because it helps to restore both fluids and electrolytes effectively. Options B, C, and D are not suitable for the initial management of severe isotonic dehydration. D5 0.2% (1/4) normal saline (Choice B) is a hypotonic solution and might worsen the imbalance. D5W (Choice C) is a hypotonic solution that does not contain electrolytes essential for rehydration. Albumin (Choice D) is a colloid solution used for specific indications like hypoproteinemia or hypoalbuminemia, not for initial rehydration in severe dehydration.

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