The antagonistic agent to digoxin toxicity is what?
Protamine sulfate.
Acetylcysteine.
Antidigoxin.
Activated charcoal.
The Correct Answer is C
Antidigoxin is an antidote for digoxin toxicity that binds and inactivates digoxin, a cardiac glycoside that can cause life-threatening arrhythmias, hyperkalemia, and other symptoms when overdosed. Antidigoxin is also known as digoxin immune Fab or DIGIFab.
Choice A, protamine sulfate, is wrong because it is an antidote for heparin, an anticoagulant that can cause bleeding when overdosed.
Choice B, acetylcysteine, is wrong because it is an antidote for acetaminophen, a painkiller that can cause liver damage when overdosed.
Choice D, activated charcoal, is wrong because it is a nonspecific adsorbent that can reduce the absorption of some drugs or poisons from the gastrointestinal tract, but it is not effective for digoxin toxicity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Thiazide diuretics are sulfa-containing drugs and can cause allergic reactions in patients who are sensitive to sulfa compounds.These reactions can include headaches, rash, hives, swelling of the mouth and lips, wheezing or trouble breathing, asthma attack, and anaphylaxis.
Choice A is wrong because iodine is not a component of thiazide diuretics and is not related to sulfa allergy.
Choice B is wrong because latex is not a component of thiazide diuretics and is not related to sulfa allergy.
Choice C is wrong because shellfish is not a component of thiazide diuretics and is not related to sulfa allergy.
Shellfish allergy is usually caused by a protein called tropomyosin, not by iodine or sulfa compounds.
Thiazide diuretics are drugs that inhibit the reabsorption of sodium and water in the distal convoluted tubule of the kidney, leading to increased urine output.They are used to treat hypertension, edema, heart failure, and some kidney diseases.Some examples of thiazide diuretics are hydrochlorothiazide, chlorthalidone, and indapamide.
Correct Answer is B
Explanation
Nitroglycerin transdermal patches are used to prevent episodes of angina (chest pain) in people who have coronary artery disease (narrowing of the blood vessels that supply blood to the heart).Nitroglycerin is a vasodilator that works by relaxing the blood vessels so that the heart does not need to work as hard and therefore does not need as much oxygen.However, if nitroglycerin is used continuously, the body may develop tolerance to its effects, meaning that it will not work as well to prevent angina attacks.Therefore, it is important to remove the patch at bedtime and apply a new one in the morning, leaving a 10-12 hour nitrate-free interval.This way, the body can restore its sensitivity to nitroglycerin and avoid angina episodes during the day.
Choice A is wrong because allergic response is not a common reason to remove the patch at night.Although some people may experience skin irritation or rash from the patch, this is usually mild and does not require discontinuation of the medication.If the skin reaction is severe or bothersome, the patch can be applied to a different area of the skin or switched to another form of nitroglycerin.
Choice C is wrong because overdose is unlikely to occur from using the patch as prescribed.Nitroglycerin patches come in doses ranging from 0.1 milligrams per hour to 0.8 mg/hr, and should be placed on clean, dry, and hairless skin for 12-14 hours and removed for 10-12 hours.If a patch loosens or falls off, it should be replaced with a fresh one.Overdose symptoms may include severe headache, dizziness, blurred vision, nausea, vomiting, sweating, chest pain, fast or irregular heartbeat, difficulty breathing, fainting, or seizures.If these occur, the patch should be removed immediately and medical attention should be sought.
Choice D is wrong because management of BPH (benign prostatic hyperplasia) is not related to nitroglycerin use.
BPH is a condition
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