ATI RN
Cardiovascular Drugs NCLEX Practice Questions Quizlet Questions
Question 1 of 5
A patient has been taking temazepam (Restoril) for intermittent insomnia. She calls the nurse to say that when she takes it, she sleeps well, but the next day she feels 'so tired.' Which explanation by the nurse is correct?
Correct Answer: C
Rationale: The correct answer is C: “These drugs affect the sleep cycle, resulting in daytime sleepiness.” Temazepam is a benzodiazepine used for insomnia by enhancing the effects of GABA neurotransmitter, which can disrupt the sleep cycle. This disruption can lead to next-day drowsiness. Choice A is incorrect as long-term use does not increase sedative effects. Choice B is incorrect as taking the drug regularly may not reduce the hangover effect. Choice D is incorrect as benzodiazepines like temazepam actually have a sedative effect and do not increase CNS activity.
Question 2 of 5
A patient tells the nurse that he likes to eat large amounts of garlic “to help lower his cholesterol levels naturally.” The nurse reviews his medication history and notes that which drug has a potential interaction with the garlic?
Correct Answer: B
Rationale: The correct answer is B: warfarin (Coumadin). Garlic can increase the risk of bleeding when taken with warfarin due to its anticoagulant properties. Garlic can enhance the effects of warfarin, leading to potentially dangerous bleeding episodes. Acetaminophen (A), digoxin (C), and phenytoin (D) do not have documented interactions with garlic that would pose a significant risk compared to warfarin. Therefore, choice B is the correct answer based on the potential for a clinically significant drug interaction.
Question 3 of 5
An oral iron supplement is prescribed for a patient. The nurse would question this order if the patient’s medical history includes which condition?
Correct Answer: B
Rationale: The correct answer is B: Hemolytic anemia. Oral iron supplements can exacerbate hemolytic anemia by increasing the production of red blood cells, which can worsen the condition. Other choices (A, C, D) are not contraindications for prescribing an oral iron supplement. Decreased hemoglobin indicates a need for iron supplementation, weakness can be a symptom of iron deficiency anemia (which would require iron supplementation), and concurrent therapy with erythropoietics can be used in combination with iron supplements to treat anemia.
Question 4 of 5
Pharmacodynamics involves the study of following EXCEPT:
Correct Answer: B
Rationale: Pharmacodynamics specifically focuses on how drugs interact with the body to produce their effects, including mechanisms of drug action and biological/therapeutic effects. Absorption and distribution of drugs fall under pharmacokinetics, not pharmacodynamics. Therefore, choice B is the correct answer. Absorption and distribution are crucial in determining drug concentrations at the site of action, but they do not directly relate to the study of how drugs exert their effects on the body. Choices A, C, and D are incorrect as they are all aspects that are studied within pharmacodynamics.
Question 5 of 5
Indicate the local anesthetic, which is a toluidine derivative:
Correct Answer: A
Rationale: The correct answer is A: Lidocaine. Lidocaine is a toluidine derivative due to its chemical structure containing a toluidine group. The toluidine derivative refers to the presence of a methyl group on the amino nitrogen atom, as seen in Lidocaine. Bupivacaine (B) is an amino amide local anesthetic, not a toluidine derivative. Prilocaine (C) is an amino amide local anesthetic like Bupivacaine. Procaine (D) is an ester local anesthetic, not a toluidine derivative. Hence, the correct choice is A (Lidocaine) as it meets the criteria of being a toluidine derivative.