ATI LPN
Cardiovascular NCLEX Questions with Rationale Questions
Question 1 of 5
The greatest decrease in ventricular pressure occurs at this time
Correct Answer: B
Rationale: Isovolumetric relaxation marks the rapid decline in ventricular pressure as the heart transitions from systole to diastole.
Question 2 of 5
A patient with alpha 1-antitrypsin deficiency is warned by his physician that his increasing dyspnea may be worsened by his continued cigarette smoking. Which of the following factors, released by both neutrophils and alveolar macrophages, is responsible for the patient's condition?
Correct Answer: D
Rationale: Elastase, unchecked due to alpha-1-antitrypsin deficiency, destroys alveolar walls, worsened by smoking, causing emphysema and dyspnea.
Question 3 of 5
The tricuspid valve has flaps that open and close.
Correct Answer: C
Rationale: The tricuspid valve has three flaps (or cusps), which is why it is named 'tricuspid'.
Question 4 of 5
What is the nurse's priority action for a client prescribed propranolol for atrial fibrillation but has a history of asthma?
Correct Answer: C
Rationale: Propranolol is a non-selective beta-blocker that can exacerbate asthma by causing bronchoconstriction.
Question 5 of 5
What finding suggests digoxin toxicity?
Correct Answer: C
Rationale: Nausea, vomiting, and visual disturbances are classic signs of digoxin toxicity.