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. Ongoing fluid losses can overwhelm the child’s ability to compensate, resulting in shock. What early clinical sign precedes shock?

• A. Tachycardia
• B. Slow respirations
• C. Warm, flushed skin
• D. Decreased blood pressure

Correct answer: A

Rationale: Tachycardia is an early sign of shock as the body tries to maintain cardiac output in the face of declining circulatory volume. Blood pressure often remains normal until late in the progression, at which point decompensated shock is occurring.

3. The mother of an infant diagnosed with bronchiolitis asks the nurse what causes the disease. How should the nurse respond?

• A. Respiratory syncytial virus (RSV)
• B. Haemophilus influenzae
• C. Parainfluenza
• D. Rotavirus

Correct answer: A

Rationale: The correct answer is A: Respiratory syncytial virus (RSV). RSV is the most common cause of bronchiolitis, especially in infants. Bronchiolitis is characterized by inflammation of the small airways in the lungs. Choice B, Haemophilus influenzae, is a bacterium that can cause respiratory infections but is not the primary cause of bronchiolitis. Choice C, Parainfluenza, is a common viral infection that can cause croup and other respiratory illnesses but is not the main cause of bronchiolitis. Choice D, Rotavirus, is a virus that primarily affects the gastrointestinal system, causing diarrhea and vomiting, and is not associated with bronchiolitis.

4. 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.

5. In the newborn, into what muscle is intramuscular vitamin K administered?

• A. Deltoid
• B. Dorsogluteal
• C. Rectus femoris
• D. Vastus lateralis

Correct answer: D

Rationale: In newborns, intramuscular vitamin K is traditionally administered into the vastus lateralis muscle. This site is preferred due to its large muscle mass and accessibility. The dorsogluteal site is not recommended for newborns due to the risk of injury to the sciatic nerve. The deltoid site is also not recommended for newborns. The rectus femoris muscle is not commonly used for intramuscular injections in newborns.

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