ATI RN
Cardiovascular System Exam Questions
1. The nurse is preparing to administer a beta blocker to a client with hypertension. What is the priority assessment?
- A. Check the client's heart rate.
- B. Check the client's blood pressure.
- C. Check the client's respiratory rate.
- D. Check the client's temperature.
Correct answer: B
Rationale: The correct answer is to check the client's blood pressure. Before administering a beta blocker to a client with hypertension, assessing the blood pressure is crucial because beta blockers can cause hypotension, potentially leading to adverse effects. Checking the heart rate may also be important but is secondary to monitoring the blood pressure in this scenario. Respiratory rate and temperature assessments are not directly related to assessing the client's response to a beta blocker in hypertension management, making choices C and D less relevant.
2. The client on digoxin has a potassium level of 3.0 mEq/L. What is the nurse’s priority action?
- A. Administer a potassium supplement
- B. Hold the digoxin and notify the healthcare provider
- C. Continue the current digoxin dose
- D. Administer Digibind
Correct answer: B
Rationale: The correct answer is to hold the digoxin and notify the healthcare provider. A potassium level of 3.0 mEq/L indicates hypokalemia, which can increase the risk of digoxin toxicity. Digoxin and low potassium levels can lead to serious cardiac arrhythmias. Administering a potassium supplement (choice A) without healthcare provider guidance can worsen the situation. Continuing the current digoxin dose (choice C) can further increase the risk of toxicity. Administering Digibind (choice D) is used in severe cases of digoxin toxicity, not for addressing low potassium levels.
3. The client is on dobutamine. Adverse effects of Dobutrex (dobutamine) include the following: Select all that apply.
- A. Heart failure
- B. Bradycardia
- C. Tachycardia
- D. Respiratory distress
Correct answer: C
Rationale: The correct answer is C: Tachycardia. Dobutamine is a medication that primarily increases heart rate (tachycardia) and blood pressure. Therefore, the adverse effects of dobutamine include tachycardia. Choices A, B, and D are incorrect. Heart failure is not an adverse effect of dobutamine; in fact, it is used to treat heart failure by increasing heart contractility. Bradycardia (slow heart rate) is not an expected adverse effect of dobutamine, as it usually increases heart rate. Respiratory distress is not a common adverse effect of dobutamine.
4. The client on furosemide (Lasix) is at risk for which electrolyte imbalance?
- A. Hyperkalemia
- B. Hypokalemia
- C. Hyponatremia
- D. Hypernatremia
Correct answer: B
Rationale: The correct answer is B: Hypokalemia. Furosemide is a loop diuretic that can lead to potassium loss, resulting in hypokalemia. This electrolyte imbalance is a significant risk associated with diuretic use. Choices A, C, and D are incorrect. Hyperkalemia (choice A) is not typically associated with furosemide use. Hyponatremia (choice C) and hypernatremia (choice D) are related to sodium levels, not potassium levels affected by furosemide.
5. Which condition is characterized by fluid collection in the lungs, making it difficult to breathe?
- A. Pulmonary edema
- B. Pleurisy
- C. Pleural effusion
- D. Pneumothorax
Correct answer: A
Rationale: The correct answer is A, Pulmonary edema. Pulmonary edema is a condition where fluid accumulates in the air sacs of the lungs, causing breathing difficulty. Pleurisy (choice B) is inflammation of the pleura causing chest pain. Pleural effusion (choice C) is the buildup of excess fluid in the pleural space, the area between the layers of tissue that line the lungs and chest cavity. Pneumothorax (choice D) is the presence of air in the pleural space, which can cause a lung to collapse.
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