Which nursing diagnosis is appropriate for a patient receiving antidysrhythmics?

Correct Answer: B

Rationale: The correct answer is B: Deficient knowledge. Patients receiving antidysrhythmics need education to understand the medication's purpose, side effects, and signs of complications. This empowers patients to manage their condition effectively. The other options are not directly related to the administration of antidysrhythmics. A (Risk for infection) is not typically a priority for patients receiving antidysrhythmics. C (Deficient fluid volume) may be relevant if the medication causes electrolyte imbalances, but education is more critical. D (Urinary retention) is not commonly associated with antidysrhythmics. Thus, B is the most appropriate nursing diagnosis for a patient receiving antidysrhythmics.

Correct Answer: D

Rationale: The correct answer is D: Inhalation. Parenteral administration involves delivering medications directly into the bloodstream, bypassing the digestive system. Inhalation allows the medication to enter the bloodstream through the lungs, making it a parenteral route. Rectal (A), oral (B), and sublingual (C) routes all involve absorption through the digestive system, so they are not considered parenteral routes.

Correct Answer: D

Rationale: The correct answer is D: Tachyphylaxis. Tachyphylaxis refers to a rapid decrease in response to a drug that develops within minutes. This term specifically describes the phenomenon of developing a tolerance to a drug in a short period of time. Refractoriness (A) generally refers to a lack of response to a drug over time. Cumulative effect (B) is the gradual build-up of a drug's effects with repeated doses. Tolerance (C) is the gradual decrease in response to a drug over an extended period, not within minutes. Thus, the most appropriate term for a rapid decrease in responsiveness to a drug is tachyphylaxis.

Correct Answer: A

Rationale: The correct answer is A: Cocaine. Cocaine is only used for surface or topical anesthesia due to its potent vasoconstrictive properties and high potential for systemic toxicity. It is not suitable for deeper anesthesia due to its side effects. Tetracaine, Mepivacaine, and Lidocaine can be used for both surface and deeper anesthesia, unlike Cocaine.

Correct Answer: B

Rationale: Benztropine is the correct answer as it acts as both a muscarinic and nicotinic blocker. Benztropine primarily blocks muscarinic receptors, leading to decreased parasympathetic activity. It also has some nicotinic blocking effects, particularly at higher doses. Atropine (choice A) is a muscarinic antagonist only, while Hexamethonium (choice C) and Succinylcholine (choice D) are nicotinic antagonists only.