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. A client with chronic obstructive pulmonary disease (COPD) appears thin and disheveled. Which question should the nurse ask first?

• A. Do you have a strong support system?
• B. What do you understand about your disease?
• C. Do you experience shortness of breath with basic activities?
• D. What medications are you prescribed to take each day?

Correct answer: C

Rationale: In clients with severe COPD, shortness of breath can significantly impact their ability to perform basic activities like bathing and eating. Therefore, the nurse's priority should be to assess if shortness of breath is interfering with the client's basic activities, which can provide crucial information for planning and managing care.

3. A student learns about modifiable risk factors for coronary artery disease. Which factors does this include? (Select one that does not apply)

• A. Age
• B. Hypertension
• C. Obesity
• D. Smoking

Correct answer: A

Rationale: Hypertension, obesity, smoking, and excessive stress are all modifiable risk factors for coronary artery disease, as they can be changed or controlled through interventions. Age, on the other hand, is a nonmodifiable risk factor, meaning it cannot be altered. Understanding the difference between modifiable and nonmodifiable risk factors is essential in preventive healthcare strategies.

4. A client developed fat embolism syndrome (FES) following a fracture. Which of the following laboratory findings should the nurse expect?

• A. Decreased serum calcium level
• B. Decreased level of serum lipids
• C. Decreased erythrocyte sedimentation rate (ESR)
• D. Increased platelet count

Correct answer: A

Rationale: In fat embolism syndrome (FES), fat globules enter the bloodstream and can lead to various complications, including a decrease in serum calcium levels. This occurs due to the formation of fat emboli in the vessels, which can interfere with calcium metabolism. Therefore, a decreased serum calcium level is an expected laboratory finding in a client with fat embolism syndrome.

5. A client presents with shortness of breath, pain in the lung area, and a recent history of starting birth control pills and smoking. Vital signs include a heart rate of 110/min, respiratory rate of 40/min, and blood pressure of 140/80 mm Hg. Arterial blood gases reveal pH 7.50, PaCO2 29 mm Hg, PaO2 60 mm Hg, HCO3 20 mEq/L, and SaO2 86%. What is the priority nursing intervention?

• A. Prepare for mechanical ventilation.
• B. Administer oxygen via face mask.
• C. Prepare to administer a sedative.
• D. Assess for indications of pulmonary embolism.

Correct answer: B

Rationale: In a client with a high respiratory rate, low PaO2, and low SaO2, the priority intervention is to improve oxygenation. Administering oxygen via a face mask will help increase the oxygen supply to the client's lungs and tissues, addressing the hypoxemia. While mechanical ventilation may be necessary in severe cases, administering oxygen is the initial and most appropriate intervention to address the client's respiratory distress. Sedatives should not be given without ensuring adequate oxygenation. Assessing for pulmonary embolism is important but not the priority at this moment when the client is experiencing respiratory distress and hypoxemia.

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