Nursing Elites

1. A nurse is caring for a client who is hyperventilating and has the following ABG results: pH 7.50, PaCO2 29 mm Hg, and HCO3- 25 mEq/L. The nurse should recognize that the client has which of the following acid-base imbalances?

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

Correct answer: B

Rationale: The correct answer is B: Respiratory alkalosis. In this scenario, the client is experiencing respiratory alkalosis due to hyperventilation. Hyperventilation leads to excessive loss of carbon dioxide, causing a decrease in hydrogen ion concentration and an increase in pH levels. Choices A, C, and D are incorrect. Respiratory acidosis is characterized by high PaCO2 and low pH. Metabolic acidosis is associated with low HCO3- levels and low pH. Metabolic alkalosis is marked by high HCO3- levels and high pH. In this case, the ABG results indicate respiratory alkalosis.

2. What should a healthcare professional monitor in a patient receiving insulin who is at risk for hypoglycemia?

• A. Monitor blood glucose levels
• B. Monitor for respiratory distress
• C. Monitor for muscle weakness
• D. Monitor for hyperkalemia

Correct answer: A

Rationale: Monitoring blood glucose levels is crucial in patients receiving insulin who are at risk for hypoglycemia. Insulin can lower blood sugar levels, potentially leading to hypoglycemia, which can be harmful if not promptly recognized and managed. Checking blood glucose levels allows for early detection of low blood sugar levels, enabling timely interventions to prevent complications. Choices B, C, and D are incorrect as they do not directly relate to monitoring for hypoglycemia in patients receiving insulin.

3. What is the preferred electrical intervention for a patient with ventricular tachycardia with a pulse?

• A. Synchronized cardioversion
• B. Defibrillation
• C. Pacing
• D. Medication administration

Correct answer: A

Rationale: The correct answer is A: Synchronized cardioversion. In ventricular tachycardia with a pulse, synchronized cardioversion is the preferred electrical intervention. Synchronized cardioversion is used to treat tachyarrhythmias where there is a pulse present. Defibrillation (choice B) is used in emergencies for pulseless ventricular tachycardia or ventricular fibrillation. Pacing (choice C) is more suitable for bradycardias or certain conduction abnormalities. Medication administration (choice D) may be used in stable cases or as an adjunct to other treatments, but synchronized cardioversion is the primary intervention for ventricular tachycardia with a pulse.

4. A nurse is reviewing the medical record of a client who has unstable angina. Which of the following findings should the nurse report to the provider?

• A. Breath sounds
• B. Temperature
• C. Blood pressure
• D. Creatine kinase

Correct answer: A

Rationale: The correct answer is A: Breath sounds. When caring for a client with unstable angina, changes in breath sounds could indicate left ventricular failure and pulmonary edema due to decreased cardiac output and reduced cardiac perfusion. Reporting any abnormalities in breath sounds promptly to the provider is crucial to prevent further complications. Choices B, C, and D are not directly related to the immediate management of unstable angina. Temperature, blood pressure, and creatine kinase levels are important parameters to monitor but are not the priority in this situation.

5. What ECG changes are associated with hyperkalemia?

• A. Flattened T waves
• B. ST depression
• C. Prominent U waves
• D. Elevated ST segments

Correct answer: B

Rationale: Hyperkalemia is known to cause ST depression on an ECG. Flattened T waves are more commonly seen in hypokalemia. Prominent U waves are associated with hypokalemia rather than hyperkalemia. Elevated ST segments are not typical findings in hyperkalemia.

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