A nurse is preparing to administer warfarin to a client who has atrial fibrillation. The nurse should explain that the purpose of this medication is which of the following?
To convert atrial fibrillation to sinus rhythm
To slow the response of the ventricles to the fast atrial impulses
To dissolve clots in the bloodstream
To reduce the risk of stroke in clients who have atrial fibrillation
The Correct Answer is D
A. Warfarin does not convert atrial fibrillation to sinus rhythm; it is an anticoagulant, not a rhythm control medication.
B. Slowing ventricular response is achieved with rate-control medications like beta blockers or calcium channel blockers, not warfarin.
C. Warfarin prevents clot formation but does not dissolve existing clots.
D. Warfarin reduces the risk of stroke by preventing thrombus formation in clients with atrial fibrillation
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Scarring of the mitral valve is typically associated with rheumatic heart disease, not pericarditis.
B. Deformity of the valve leaflets is seen in valvular heart diseases, not pericarditis.
C. Inflammation of the endocardium refers to endocarditis, a different condition from pericarditis.
D. Pericardial effusion, the accumulation of fluid in the pericardial sac, is a common complication of pericarditis and can lead to cardiac tamponade if not managed.
Correct Answer is C
Explanation
A. Anaphylactic shock is a life-threatening allergic reaction, but it is less common and less frequently the cause of ICU deaths compared to septic shock.
B. Neurogenic shock results from spinal cord injuries or central nervous system damage and is relatively rare.
C. Septic shock is the most common cause of death in intensive care units in the United States. It results from overwhelming infection and leads to systemic inflammation, vasodilation, and multi-organ dysfunction.
D. Cardiogenic shock occurs due to the heart’s inability to pump effectively, often after a major myocardial infarction, but it is not the leading cause of death in ICUs.
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