ATI RN
ATI Pharmacology Proctored Exam 2019
1. A client reports taking Aspirin about four times daily for a sprained wrist. Which of the following prescribed medications taken by the client is contraindicated with aspirin?
- A. Digoxin
- B. Metformin
- C. Warfarin
- D. Nitroglycerin
Correct answer: C
Rationale: The correct answer is C, Warfarin. Aspirin increases the effect of anticoagulants like warfarin by inhibiting platelet aggregation, leading to an increased risk of bleeding. Therefore, the use of aspirin is generally contraindicated for clients taking warfarin. Choices A, B, and D are not contraindicated with aspirin. Digoxin, Metformin, and Nitroglycerin do not have significant interactions with Aspirin, unlike Warfarin, making them safe to use concomitantly.
2. Which drug is the antidote for Alprazolam?
- A. Physostigmine
- B. Protamine sulfate
- C. Flumazenil
- D. Acetylcysteine
Correct answer: C
Rationale: Flumazenil is the specific antidote used to reverse the effects of Alprazolam. Alprazolam is a benzodiazepine, and Flumazenil is a benzodiazepine receptor antagonist that works by competitively inhibiting the actions of benzodiazepines at the receptor site, effectively reversing their sedative and other effects. Physostigmine is not used as an antidote for benzodiazepine overdose and can have significant side effects. Protamine sulfate is used to reverse the effects of heparin, not benzodiazepines like Alprazolam. Acetylcysteine is used as an antidote for acetaminophen overdose, not benzodiazepines like Alprazolam.
3. Which of the following is classified as a class IA Sodium Channel blocker?
- A. Quinidine
- B. Disopyramide
- C. Aminodarone
- D. Propafenone
Correct answer: A
Rationale: Quinidine is classified as a class IA sodium channel blocker. Class IA antiarrhythmics, like quinidine, work by blocking sodium channels and delaying repolarization. Propafenone, mentioned in the original rationale, is actually a class IC antiarrhythmic agent, not a class IA sodium channel blocker.
4. A client has a Cerebrospinal fluid infection with gram-negative bacteria. Which of the following Cephalosporin antibiotics should be administered IV to treat this infection?
- A. Cefaclor
- B. Cefazolin
- C. Cefepime
- D. Cephalexin
Correct answer: C
Rationale: In treating a Cerebrospinal fluid infection caused by gram-negative bacteria, Cefepime, a fourth-generation cephalosporin, is the most suitable choice due to its enhanced efficacy against gram-negative organisms in such infections. Cefaclor (Choice A) is a second-generation cephalosporin more commonly used for respiratory tract infections. Cefazolin (Choice B) is a first-generation cephalosporin often used for skin and soft tissue infections. Cephalexin (Choice D) is a first-generation cephalosporin indicated for skin and urinary tract infections, but not the optimal choice for a Cerebrospinal fluid infection with gram-negative bacteria.
5. A client has a new prescription for Simvastatin. Which of the following client statements indicates an understanding of the teaching?
- A. I will take this medication at bedtime.
- B. I should avoid eating grapefruit while taking this medication.
- C. I will need to monitor my blood sugar closely while taking this medication.
- D. I will stop taking the medication if I develop muscle pain.
Correct answer: B
Rationale: The correct answer is B. Grapefruit can increase the levels of simvastatin in the blood, leading to an increased risk of serious side effects, including muscle pain or damage. Therefore, it is crucial for the client to avoid consuming grapefruit while taking this medication to prevent potential complications.
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