ATI RN
Common Cardiovascular Drugs Questions
Question 1 of 5
The nurse is conducting a smoking-cessation program. Which statement regarding drugs used in cigarette-smoking–cessation programs is true?
Correct Answer: A
Rationale: The correct answer is A because rapid chewing of nicotine gum releases an immediate dose of nicotine, providing quick relief during cravings. This immediate effect helps manage withdrawal symptoms effectively. Option B is incorrect as transdermal patches provide a steady release of nicotine over time, not quick relief. Option C is incorrect; compliance is similar for both gum and patches. Option D is incorrect as the nicotine gum can be used up to 20-30 times per day, not just six.
Question 2 of 5
The nurse is monitoring drug levels for a patient who is receiving theophylline. The most recent theophylline level was 13 mcg/mL, and the nurse evaluates this level to be
Correct Answer: B
Rationale: The correct answer is B: at a therapeutic level. The therapeutic range for theophylline is typically 10-20 mcg/mL. A level of 13 mcg/mL falls within this range, indicating the drug is at an appropriate concentration to provide therapeutic effects without causing toxicity. Choices A, C, and D are incorrect because they do not align with the established therapeutic range for theophylline. A level below the therapeutic range (Choice A) would indicate subtherapeutic effects, whereas a level above the therapeutic range (Choice C) would suggest potential for toxicity. A level at a toxic level (Choice D) would indicate a concentration that is harmful to the patient.
Question 3 of 5
The term “biotransformation” includes the following:
Correct Answer: D
Rationale: The correct answer is D because biotransformation refers to the process of physicochemical and biochemical alteration of a drug in the body. This process involves converting a drug into metabolites that are more easily excreted. Choice A is incorrect as it describes accumulation in fat tissue, not transformation. Choice B is incorrect as it refers to binding with plasma proteins, not transformation. Choice C is incorrect as it mentions accumulation in a tissue, not transformation. Thus, only choice D accurately defines biotransformation.
Question 4 of 5
What does the term “potentiation” mean?
Correct Answer: D
Rationale: The term "potentiation" refers to the intensive increase of drug effects due to their combination. This is the correct answer because potentiation occurs when one drug enhances the effects of another drug when taken together. It's important to note that potentiation is different from cumulative ability (A), which refers to the build-up of a drug's effects over time. It is also distinct from hypersensitivity (B), which is an exaggerated response to a drug due to individual factors. Additionally, potentiation is not the same as fast tolerance developing (C), which is when the body becomes less responsive to a drug with repeated use. In summary, the correct answer, option D, best describes the concept of potentiation in pharmacology.
Question 5 of 5
Correct statements concerning lidocaine include all of the following EXCEPT:
Correct Answer: B
Rationale: The correct answer is B: It has esteratic linkage. Lidocaine is an amide-type local anesthetic, not an ester. It is not a universal anesthetic (A), as it is mainly used for local anesthesia. It is widely used as an antiarrhythmic agent (C) due to its ability to stabilize cell membranes in the heart. Lidocaine is metabolized in the liver (D) by the cytochrome P450 enzyme system. Therefore, B is incorrect because lidocaine does not have an esteratic linkage.