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. A new parent, when asked by a nurse, explains that the 4-month-old infant has been nursing regularly every 3 to 4 hours and seems satisfied. However, the parent recently introduced solid food in the form of unbuttered popcorn to the infant as a supplement. What should be the primary nursing concern in this situation?

• A. Imbalanced nutrition, more than body requirements, related to introduction of a high-calorie food
• B. Risk for aspiration related to feeding the infant an inappropriate food
• C. Imbalanced nutrition, less than body requirements, related to introduction of a low-nutritive food
• D. Readiness for enhanced nutrition, related to the age of the infant

Correct answer: B

Rationale: The primary nursing concern in this situation is the risk for aspiration. Popcorn is a choking hazard for infants, as their airway is not fully developed to handle solid foods like popcorn. Choices A, C, and D are incorrect because the main focus should be on the immediate risk of aspiration due to the inappropriate solid food given to the infant, rather than on nutritional imbalances or readiness for enhanced nutrition.

3. 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.

4. Clinical manifestations of sodium excess (hypernatremia) include which signs or symptoms?

• A. Hyperreflexia
• B. Abdominal cramps
• C. Cardiac dysrhythmias
• D. Dry, sticky mucous membranes

Correct answer: D

Rationale: Hypernatremia often presents with dry, sticky mucous membranes due to dehydration. Hyperreflexia and abdominal cramps may also occur, but dry mucous membranes are more consistently observed in cases of sodium excess.

5. During the 2-month well-child checkup, the nurse expects the infant to respond to sound in which manner?

• A. Respond to name
• B. React to loud noise with Moro reflex
• C. Turn his or her head to side when sound is at ear level
• D. Locate sound by turning his or her head in a curving arc

Correct answer: B

Rationale: At 2 months, infants typically react to loud noises with the Moro reflex, a startle response that is normal at this stage of development.

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