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. 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.

3. When assessing a client with pneumonia, which clinical manifestation should the nurse expect to find?

• A. Fremitus
• B. Hyperresonance
• C. Dullness on percussion
• D. Decreased tactile fremitus

Correct answer: C

Rationale: In pneumonia, lung tissue consolidation occurs, leading to dullness on percussion. This is a typical finding in pneumonia. Fremitus and decreased tactile fremitus are more commonly associated with conditions like pleural effusion or pneumothorax. Hyperresonance is typically seen in conditions causing air trapping, such as emphysema.

4. A client with acute respiratory failure (ARF) is being cared for by a nurse. The nurse should monitor the client for which of the following manifestations of this condition?

• A. Severe dyspnea
• B. Nausea
• C. Decreased level of consciousness
• D. Headache

Correct answer: B

Rationale: In acute respiratory failure, the body is not getting enough oxygen, leading to hypoxia. Symptoms of hypoxia include severe dyspnea (A), decreased level of consciousness (C), and headache (D) due to inadequate oxygen supply to the brain. Nausea (B) is not a typical manifestation of acute respiratory failure and is not directly related to the lack of oxygen in the body. Therefore, the nurse should not monitor the client for nausea as a direct consequence of ARF.

5. A client takes atorvastatin (Lipitor), with laboratory results showing a blood urea nitrogen (BUN) of 33 mg/dL and creatinine of 2.8 mg/dL. What action by the nurse is best?

• A. Ask if the client eats grapefruit.
• B. Assess the client for dehydration.
• C. Facilitate admission to the hospital.
• D. Obtain a random urinalysis.

Correct answer: A

Rationale: There is a drug-food interaction between statins and grapefruit that can lead to acute kidney failure. The client has elevated renal laboratory results, indicating kidney involvement. The nurse should ask if the client consumes grapefruit or grapefruit juice. While dehydration can elevate BUN, the increase in creatinine is more specific for kidney injury.

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