ATI RN
Cardiovascular System Practice Exam
1. The client on furosemide is at risk for which electrolyte imbalance?
- A. Hypokalemia
- B. Hypernatremia
- C. Hyperkalemia
- D. Hyponatremia
Correct answer: A
Rationale: The correct answer is A: Hypokalemia. Furosemide is a loop diuretic that can lead to potassium loss, resulting in hypokalemia. This electrolyte imbalance is a significant risk associated with the use of diuretics. Choice B, Hypernatremia, is incorrect as furosemide is not known to cause high sodium levels. Choice C, Hyperkalemia, is also incorrect as furosemide tends to cause potassium depletion rather than excess. Choice D, Hyponatremia, is not directly related to furosemide use.
2. Clients may benefit from slightly higher fat intakes than are normally recommended if they have:
- A. congestive heart failure
- B. cerebrovascular accident
- C. peripheral vascular disease
- D. chronic obstructive pulmonary disease
Correct answer: D
Rationale: In chronic obstructive pulmonary disease (COPD), higher fat intake can be beneficial because it provides more calories with less respiratory burden compared to carbohydrates. Choices A, B, and C are incorrect because congestive heart failure, cerebrovascular accident, and peripheral vascular disease do not specifically benefit from higher fat intakes as in COPD.
3. A healthcare professional is providing care for a client with a diagnosis of bipolar disorder. Which client behavior would the healthcare professional identify as characteristic of a manic episode?
- A. Sleeping excessively
- B. Excessive energy
- C. Decreased appetite
- D. Lack of interest in activities
Correct answer: B
Rationale: During a manic episode in bipolar disorder, individuals often experience heightened energy levels, increased goal-directed activity, and may engage in risky behaviors. This excessive energy is a key characteristic of manic episodes. Choice A, sleeping excessively, is more characteristic of a depressive episode. Choice C, decreased appetite, can be seen in various mood disorders but is not specific to manic episodes. Choice D, lack of interest in activities, is more indicative of a depressive episode rather than a manic episode. It is important for healthcare professionals to recognize these signs to provide appropriate care and support to individuals with bipolar disorder.
4. What comfort measure may the nurse delegate to unlicensed assistive personnel (UAP) for a client receiving O2 at 4 liters per nasal cannula?
- A. Apply water-soluble ointment to nares and lips.
- B. Periodically adjust the oxygen flow rate.
- C. Remove the tubing from the client's nose.
- D. Turn the client every 2 hours or as needed.
Correct answer: A
Rationale: When a client is receiving oxygen at a high flow rate, it can cause drying of the nasal passages and lips. Therefore, a comfort measure that can be delegated to unlicensed assistive personnel (UAP) is applying water-soluble ointment to the client's nares and lips. Adjusting the oxygen flow rate should be done by licensed nursing staff, not UAP. Removing the tubing can disrupt the oxygen delivery and should be performed by trained personnel. Turning the client every 2 hours is a general comfort measure but is not specific to addressing the drying effects of oxygen therapy.
5. A patient with a longstanding diagnosis of generalized anxiety disorder presents to the emergency room. The triage nurse notes upon assessment that the patient is hyperventilating. The triage nurse is aware that hyperventilation is the most common cause of which acid-base imbalance?
- A. Respiratory acidosis
- B. Respiratory alkalosis
- C. Increased PaCO2
- D. CNS disturbances
Correct answer: B
Rationale: The correct answer is B: Respiratory alkalosis. Hyperventilation, which can be caused by extreme anxiety, is the most common cause of acute respiratory alkalosis. This leads to a decrease in PaCO2 levels. Respiratory acidosis, choice A, occurs in conditions like hypoventilation, leading to an increase in PaCO2 levels. Choice C, Increased PaCO2, is not the correct term for an acid-base imbalance related to hyperventilation. Choice D, CNS disturbances, is not directly related to the acid-base imbalance caused by hyperventilation.
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