Nursing Elites

1. A client's arterial blood gas results show a pH of 7.3 and a PaCO2 of 50 mm Hg. The client is experiencing which of the following acid-base imbalances?

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

Correct answer: C

Rationale: In respiratory acidosis, there is an excess of carbon dioxide (PaCO2 > 45 mm Hg) leading to a decrease in pH (<7.35). The given values of a pH of 7.3 and PaCO2 of 50 mm Hg indicate respiratory acidosis. Metabolic acidosis involves a primary decrease in bicarbonate levels with a compensatory decrease in PaCO2 to maintain balance. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. Respiratory alkalosis is marked by low PaCO2 and increased pH levels.

2. After an open lung biopsy, a nurse assesses a client. Which assessment finding is matched with the correct intervention?

• A. Client states he is dizzy. Nurse applies oxygen and pulse oximetry.
• B. Client's HR is 55 beats/min. Nurse withholds pain medication.
• C. Client has reduced breath sounds. Nurse calls the physician immediately.
• D. Client's RR is 18 breaths/min. Nurse decreases the oxygen flow rate.

Correct answer: C

Rationale: After an open lung biopsy, a potential complication is pneumothorax, often indicated by reduced or absent breath sounds. The nurse should promptly notify the physician to address this serious issue and ensure timely intervention.

3. A client with asthma has developed viral pharyngitis. Which of the following findings should the nurse expect?

• A. Petechiae on the chest and abdomen
• B. WBC 16,000/mm3
• C. Negative throat culture
• D. Severe hyperemia of pharyngeal mucosa

Correct answer: C

Rationale: Viral pharyngitis is typically caused by a virus, not bacteria, so a negative throat culture is an expected finding. The presence of petechiae on the chest and abdomen (Choice A) is not a common manifestation of viral pharyngitis. Elevated WBC count (Choice B) is more indicative of a bacterial infection rather than a viral one. Severe hyperemia of the pharyngeal mucosa (Choice D) is a possible finding in pharyngitis but is not specific to viral pharyngitis.

4. When caring for an older adult client with a pulmonary infection, what action should the nurse take first?

• A. Encourage the client to increase fluid intake.
• B. Assess the client's level of consciousness.
• C. Raise the head of the bed to at least 45 degrees.
• D. Provide the client with humidified oxygen.

Correct answer: B

Rationale: Assessing the client's level of consciousness is the priority because it provides crucial information on the client's neurological status and response to the infection. Changes in consciousness can indicate deterioration or improvement in the client's condition, guiding further interventions and treatment.

5. A client with Parkinson's disease is prescribed carbidopa-levodopa (Sinemet). What should the nurse include in the teaching about this medication?

• A. Take the medication without a high-protein meal.
• B. Expect the medication to take several weeks to reach full effectiveness.
• C. The medication may cause urine to turn light.
• D. You may experience a rapid heartbeat as a common side effect.

Correct answer: B

Rationale: Patients prescribed carbidopa-levodopa should be informed that it may take several weeks for the medication to reach its full therapeutic effectiveness in managing Parkinson's disease symptoms. This delayed onset of action is important for patients to be aware of to prevent premature discontinuation of the medication due to perceived lack of efficacy.

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