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. During an acute asthma attack in a client with asthma, what medication should the nurse administer first?

• A. Oral corticosteroids
• B. Short-acting beta agonist
• C. Leukotriene receptor antagonist
• D. Long-acting beta agonist

Correct answer: B

Rationale: During an acute asthma attack, the priority is to quickly relieve bronchospasm and improve breathing. Short-acting beta agonists, like albuterol, are the first-line medications as they rapidly relax bronchial muscles, providing immediate relief. Oral corticosteroids are used as adjunct therapy to reduce airway inflammation over time, while leukotriene receptor antagonists and long-acting beta agonists are not appropriate for immediate relief during an acute attack.

3. A client tests positive for alpha1-antitrypsin (AAT) deficiency and asks the nurse, What does this mean? How should the nurse respond?

• A. Your children may be at high risk for developing chronic obstructive pulmonary disease.
• B. I will arrange for a genetic counselor to discuss your condition.
• C. Your risk for chronic obstructive pulmonary disease is higher, particularly if you smoke.
• D. This is a recessive gene that should not affect your health.

Correct answer: C

Rationale: Alpha1-antitrypsin (AAT) deficiency is associated with a higher risk of chronic obstructive pulmonary disease (COPD), especially if the individual smokes. This condition is caused by a recessive gene. Individuals with one allele typically produce enough AAT to prevent COPD unless they smoke. However, those with two alleles are at high risk for COPD even without exposure to smoke or other irritants. Being a carrier of AAT deficiency does not guarantee that one's children will develop the disease; it depends on the AAT levels of the partner. While involving a genetic counselor may be beneficial in the long run, the immediate concern of the client's question should be addressed first.

4. A healthcare professional is caring for a client who has just developed a pulmonary embolism. Which of the following medications should the healthcare professional anticipate administering?

• A. Furosemide
• B. Dexamethasone
• C. Heparin
• D. Atropine

Correct answer: C

Rationale: In the scenario of a pulmonary embolism, the priority medication to administer is Heparin. Heparin is an anticoagulant that helps prevent the formation of new blood clots and the growth of existing ones, which is crucial in managing pulmonary embolism. Furosemide is a diuretic used to treat fluid retention, Dexamethasone is a corticosteroid used for inflammation, and Atropine is an anticholinergic medication used for various purposes such as treating bradycardia.

5. When caring for a client with acute renal failure, which laboratory value is most important to monitor?

• A. Serum sodium
• B. Serum potassium
• C. Serum calcium
• D. Serum chloride

Correct answer: B

Rationale: In acute renal failure, monitoring serum potassium is crucial because impaired kidney function can lead to hyperkalemia, which can result in life-threatening cardiac dysrhythmias. Elevated potassium levels need close monitoring and prompt interventions to prevent serious complications.

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