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. The charge nurse in the pediatric unit is teaching nursing students about pyloric stenosis. A student asks what causes pyloric stenosis. How should the nurse respond?

• A. One portion of the intestines invaginates or telescopes into another
• B. Hypertrophy of the circular pylorus muscle
• C. Relaxed cardiac sphincter
• D. Absent ganglion cells in the colon

Correct answer: B

Rationale: Pyloric stenosis is caused by the hypertrophy (thickening) of the circular muscle of the pylorus, leading to obstruction. Choice A is incorrect as it describes intussusception, not pyloric stenosis. Choice C is incorrect as a relaxed cardiac sphincter is related to gastroesophageal reflux. Choice D is incorrect as it describes Hirschsprung's disease, not pyloric stenosis.

3. A newborn has been diagnosed with Hirschsprung’s disease. The parent asks the nurse about the symptoms that led to the diagnosis. Which symptoms should the nurse include in the response?

• A. Acute diarrhea and dehydration
• B. Current jelly-like stools and pain
• C. Failure to pass meconium and abdominal distension
• D. Projectile vomiting and altered electrolytes

Correct answer: C

Rationale: The correct answer is C: Failure to pass meconium and abdominal distension. Hirschsprung’s disease is commonly diagnosed in newborns due to the failure to pass meconium within the first 24-48 hours after birth and abdominal distension, indicating a bowel obstruction. Choices A, B, and D are incorrect because they do not correspond to the typical symptoms of Hirschsprung’s disease. Acute diarrhea and dehydration, current jelly-like stools and pain, and projectile vomiting with altered electrolytes are not characteristic of this condition.

4. The nurse is performing an oral examination on a preschool child. Which strategies should the nurse use to encourage the child to open the mouth for the examination? (Select all that apply.)

• A. Lightly brush the palate with a cotton swab
• B. Perform the examination in front of a mirror
• C. Let the child examine someone else's mouth first
• D. All of the above

Correct answer: D

Rationale: Using a cotton swab, allowing the child to observe, and demonstrating on someone else are effective ways to encourage a preschooler to open their mouth for examination.

5. Parents would suspect hearing loss if their child did not:

• A. Turn away from a sound
• B. Startle with sudden loud noises immediately after birth
• C. Talk at 4 months
• D. Babble at 2 months

Correct answer: D

Rationale: The correct answer is D because babbling is an early indicator of hearing ability in infants. Lack of babbling by 2 months may suggest a potential hearing issue. Choices A, B, and C are incorrect because turning away from a sound, startling with sudden loud noises immediately after birth, and talking at 4 months are not primary indicators of hearing loss in infants.

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