Nursing Elites

1. A patient is admitted with active tuberculosis (TB). The nurse should question a healthcare provider's order to discontinue airborne precautions unless which assessment finding is documented?

• A. Chest x-ray shows no upper lobe infiltrates.
• B. TB medications have been taken for 6 months.
• C. Mantoux testing shows an induration of 10 mm.
• D. Three sputum smears for acid-fast bacilli are negative.

Correct answer: D

Rationale: The correct answer is D: Three sputum smears for acid-fast bacilli are negative. Negative sputum smears indicate that Mycobacterium tuberculosis is not present in the sputum, and the patient cannot transmit the bacteria by the airborne route. This finding is crucial for discontinuing airborne precautions. Choice A is incorrect because chest x-rays do not determine the presence of active TB for transmission precautions. Choice B is not directly related to the infectiousness of TB; completing a 6-month course of medication is important for treatment but does not confirm the absence of active disease or infectiousness. Choice C is not relevant to assessing infectiousness; Mantoux testing measures exposure to TB but does not confirm the absence of active infection or infectiousness.

2. A healthcare professional is putting together a presentation on meningitis. Which of the following microorganisms has not been linked to meningitis in humans?

• A. S. pneumoniae
• B. H. influenzae
• C. N. meningitidis
• D. Cl. difficile

Correct answer: D

Rationale: The correct answer is Cl. difficile. Clostridium difficile (C. diff) is not typically associated with meningitis in humans. This bacterium is known to cause severe diarrhea, usually as a result of antibiotic treatment. S. pneumoniae, H. influenzae, and N. meningitidis are all known to be causative agents of meningitis in humans. S. pneumoniae is a common cause of bacterial meningitis, especially in adults. H. influenzae, particularly type b (Hib), used to be a leading cause of meningitis in children before the introduction of the Hib vaccine. N. meningitidis is another significant pathogen responsible for causing meningitis, especially in young adults and adolescents.

3. A patient with idiopathic pulmonary arterial hypertension (IPAH) is receiving nifedipine (Procardia). Which assessment would best indicate to the nurse that the patient's condition is improving?

• A. Blood pressure (BP) is less than 140/90 mm Hg.
• B. Patient reports decreased exertional dyspnea
• C. Heart rate is between 60 and 100 beats/minute
• D. Patient's chest x-ray indicates clear lung fields

Correct answer: B

Rationale: The correct answer is for the patient to report decreased exertional dyspnea. In idiopathic pulmonary arterial hypertension (IPAH), exertional dyspnea is a significant symptom indicating disease severity. Improvement in this symptom suggests that the medication, nifedipine, is effective in managing the condition. While nifedipine can affect blood pressure (choice A) and heart rate (choice C), these parameters are not specific indicators for monitoring IPAH improvement. Choice D, clear lung fields on the chest x-ray, does not directly correlate with the effectiveness of therapy for IPAH. Therefore, the most relevant assessment to monitor improvement in a patient with IPAH receiving nifedipine is a decrease in exertional dyspnea.

4. A nurse in the emergency department is observing a 4-year-old child for signs of increased intracranial pressure after a fall from a bicycle, resulting in head trauma. Which of the following signs or symptoms would be cause for concern?

• A. Bulging anterior fontanel
• B. Repeated vomiting
• C. Signs of sleepiness at 10 PM
• D. Inability to read short words from a distance of 18 inches

Correct answer: B

Rationale: Increased intracranial pressure after head trauma can lead to serious complications. Repeated vomiting is a concerning sign as it can indicate stimulation of the vomiting center within the brainstem due to increased pressure. This can be an early indicator of raised intracranial pressure and the need for urgent medical intervention. Bulging anterior fontanel may not be immediately apparent in a 4-year-old child and is more common in infants. Signs of sleepiness at a particular time of day are not specific to increased intracranial pressure. Inability to read short words from a distance of 18 inches may indicate vision problems but is not directly related to intracranial pressure.

5. The healthcare provider is caring for a 20 lbs (9 kg) 6-month-old with a 3-day history of diarrhea, occasional vomiting, and fever. Peripheral intravenous therapy has been initiated, with 5% dextrose in 0.33% normal saline with 20 mEq of potassium per liter infusing at 35 ml/hr. Which finding should be reported to the healthcare provider immediately?

• A. 3 episodes of vomiting in 1 hour
• B. Periodic crying and irritability
• C. Vigorous sucking on a pacifier
• D. No measurable voiding in 4 hours

Correct answer: D

Rationale: The correct answer is 'No measurable voiding in 4 hours.' This finding should be reported to the healthcare provider immediately. The concern is the possibility of hyperkalemia, which could occur with continued potassium administration and a decrease in urinary output since potassium is excreted via the kidneys. It is crucial to monitor urinary output in pediatric patients receiving potassium-containing IV solutions to prevent electrolyte imbalances and potential complications. Choices A, B, and C are not the most critical findings that require immediate reporting. '3 episodes of vomiting in 1 hour' may suggest a need for antiemetic therapy or further assessment of the underlying cause but does not pose an immediate risk like the potential electrolyte imbalance from decreased urinary output. 'Periodic crying and irritability' and 'Vigorous sucking on a pacifier' are common behaviors in infants and are not indicative of a critical condition that requires urgent attention in this scenario.

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