A nurse is reinforcing teaching about warfarin with a client who has a new onset of atrial fibrillation. Which of the following statements should the nurse include in the teaching?
"Warfarin dissolves clots in the bloodstream."
"This medication slows the response of the ventricles to the fast atrial impulses."
"Warfarin helps prevent strokes in clients who have atrial fibrillation."
"This medication will help maintain a normal heart rhythm."
The Correct Answer is C
Choice A reason : The statement that warfarin dissolves clots in the bloodstream is incorrect. Warfarin does not dissolve existing clots. Instead, it is an anticoagulant that works by decreasing the production of certain clotting factors in the blood, which helps prevent the formation of new clots.
Choice B reason : This statement is not accurate regarding the action of warfarin. Warfarin does not affect the electrical impulses of the heart. Medications that slow the response of the ventricles to fast atrial impulses are typically antiarrhythmic drugs, not anticoagulants like warfarin.
Choice C reason : This is the correct statement. Warfarin is prescribed for clients with atrial fibrillation to reduce the risk of stroke. Atrial fibrillation increases the risk of forming blood clots in the heart, which can then travel to the brain, causing a stroke. Warfarin's anticoagulant effect helps to prevent these clots from forming.
Choice D reason : Warfarin does not help maintain a normal heart rhythm. It is not an antiarrhythmic drug but an anticoagulant. The purpose of warfarin in atrial fibrillation is to prevent stroke by reducing the risk of clot formation, not to correct the heart rhythm.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason : Probiotics are beneficial for gut health and may have a role in maintaining a healthy immune system, but they are not primarily known for lowering blood pressure. While some studies suggest a potential benefit of probiotics on blood pressure, more research is needed to establish a direct effect.
Choice B reason : Garlic is well-known for its potential benefits in lowering blood pressure. It contains allicin, which is thought to help relax blood vessels and improve blood flow, thereby reducing blood pressure. Studies have shown that garlic supplements can have a significant impact on reducing blood pressure in individuals with hypertension.
Choice C reason : Ginger root is commonly used for its anti-inflammatory properties and gastrointestinal benefits. Some studies suggest that ginger may help lower blood pressure, but the evidence is not as strong as it is for garlic. Therefore, it is not the primary recommendation for hypertension management.
Choice D reason : Valerian is often used for its sedative effects and to aid sleep. There is limited evidence to suggest that valerian has any significant impact on blood pressure. It is not typically recommended as a treatment for hypertension.
Correct Answer is C
Explanation
Choice A reason : Keeping the client in a high-Fowler's position for 6 hours post-cardiac catheterization is not recommended. After a femoral approach, it's important to keep the leg straight and the patient flat or with the head slightly elevated to prevent bleeding from the catheter insertion site. High-Fowler's position could increase the risk of bleeding and is not conducive to maintaining pressure at the arterial access site.
Choice B reason : Allowing the patient to ambulate around the room immediately after the procedure is contraindicated. The patient is typically required to remain on bed rest with the affected leg straight to prevent bleeding and ensure proper healing of the arterial puncture site. Ambulation is usually restricted for several hours post-procedure.
Choice C reason : Checking pedal pulses every 15 minutes is a critical action following cardiac catheterization via the femoral artery. It ensures that there is adequate blood flow to the extremity and helps to identify any complications such as occlusion or bleeding early. Adequate perfusion is indicated by strong and equal pedal pulses.
Choice D reason : Performing passive range-of-motion exercises for the affected extremity immediately after cardiac catheterization is not recommended. The affected leg should remain straight without bending at the hip to prevent bleeding from the catheter site. Passive range-of-motion could disrupt the vascular integrity at the puncture site and increase the risk of bleeding.
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