A nurse is caring for a client who is prescribed heparin via intravenous (IV). 40 minutes after the administration of heparin, the client reports "coughing up blood" and notes there is blood in his stool.
Based on the client's presenting symptoms, which of the following options is an antidote for this client?
Benztropine.
Protamine sulfate.
Vitamin K.
Digibind.
The Correct Answer is B
Choice A rationale
Benztropine is an anticholinergic agent used to treat Parkinsonism and extrapyramidal symptoms, not suitable for reversing heparin effects.
Choice B rationale
Protamine sulfate is the specific antidote for heparin overdose. It works by neutralizing the anticoagulant effects of heparin.
Choice C rationale
Vitamin K is an antidote for warfarin overdose, promoting the synthesis of clotting factors, but ineffective against heparin.
Choice D rationale
Digibind is an antidote for digoxin toxicity, not appropriate for counteracting heparin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Morphine has a high potential for abuse due to its euphoric effects and the risk of developing physical dependence and addiction with prolonged use.
Choice B rationale
Morphine acts as an agonist on the mu and kappa receptors in the central nervous system, providing analgesic effects by altering the perception of and response to pain.
Choice C rationale
Morphine is a potent analgesic that is more effective than butorphanol, which is a mixed agonist-antagonist with less potency and a ceiling effect on pain relief.
Choice D rationale
Morphine is primarily used for pain management and is not indicated for preventing fevers.
Correct Answer is A
Explanation
Choice A rationale
Nifedipine is a calcium channel blocker that is effective in treating hypertension and angina. It works by relaxing the blood vessels, which lowers blood pressure and improves blood flow to the heart, reducing chest pain and hypertension.
Choice B rationale
Digoxin is not typically used to treat hypertension. It is primarily used for heart failure and atrial fibrillation to increase the strength of heart muscle contractions and regulate heart rhythm.
Choice C rationale
Heparin is an anticoagulant used to prevent and treat blood clots. It does not directly treat hypertension or angina and is used for conditions like deep vein thrombosis, pulmonary embolism, and during surgeries to prevent clot formation.
Choice D rationale
Captopril is an ACE inhibitor used to treat hypertension and heart failure. While it is effective for lowering blood pressure, it is not primarily used for treating angina compared to medications like nifedipine or other calcium channel blockers.
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