The nurse discovers a patient receiving warfarin is bleeding.
What drug would the nurse prepare to counteract this drug?
Vitamin E.
Protamine Sulfate.
Calcium Gluconate.
Vitamin K.
The Correct Answer is D
Choice A rationale
Vitamin E is an antioxidant and is not indicated to counteract the effects of warfarin. It does not have a role in reversing anticoagulation or managing bleeding. High doses of Vitamin E can actually interfere with clotting and potentially exacerbate bleeding.
Choice B rationale
Protamine Sulfate is an antidote for heparin, not warfarin. It works by neutralizing the effects of heparin, which is an anticoagulant that acts quickly to prevent clot formation. Warfarin works differently and requires a different antidote for its anticoagulant effect.
Choice C rationale
Calcium Gluconate is not an antidote for warfarin. It is typically used in cases of hypocalcemia and can stabilize cardiac membranes in hyperkalemia but has no effect on reversing warfarin-induced anticoagulation or bleeding.
Choice D rationale
Vitamin K is the correct antidote for warfarin. It counteracts the anticoagulant effects by promoting the synthesis of clotting factors that warfarin inhibits. Administering Vitamin K is standard practice in reversing the effects of warfarin and managing bleeding complications.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Cholinergic agonists primarily stimulate the parasympathetic nervous system rather than the central nervous system, affecting activities like digestion, salivation, and decreased heart rate.
Choice B rationale
Parasympathetic nervous system is the correct answer. Cholinergic agonists mimic acetylcholine and stimulate parasympathetic responses, promoting rest-and-digest functions such as reducing heart rate and enhancing glandular secretions.
Choice C rationale
The sympathetic nervous system is not stimulated by cholinergic agonists. Instead, this system is activated by adrenergic agonists, which prepare the body for fight-or-flight responses, increasing heart rate and blood pressure.
Choice D rationale
Voluntary nervous system control is not the primary target of cholinergic agonists. This system governs skeletal muscle movement and is influenced by neuromuscular junctions rather than the autonomic responses modulated by cholinergic drugs. .
Correct Answer is B
Explanation
Choice A rationale
While the increase in the number of drug addicts has led to stricter regulations, this is not the primary reason for the difficulty in obtaining narcotic prescriptions.
Choice B rationale
Controlled substances like narcotics are regulated by the FDA and the DEA to prevent misuse and ensure they are prescribed and dispensed safely and appropriately.
Choice C rationale
The Centers for Disease Control and Prevention (CDC) does not regulate controlled substances; they focus on public health issues and disease prevention.
Choice D rationale
The Drug Enforcement Agency (DEA) does determine the risk for addiction, but it is the FDA that enforces regulations related to controlled substances. .
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