ATI RN
Chapter 25 Cardiovascular Drugs Quizlet Questions
Question 1 of 5
A patient is taking flurazepam (Dalmane) 3 to 4 nights a week for sleeplessness. She is concerned that she cannot get to sleep without taking the medication. What nonpharmacologic measures should the nurse suggest to promote sleep for this patient?
Correct Answer: A
Rationale: The correct answer is A: Providing a quiet environment. Creating a quiet environment can help the patient relax and reduce distractions, promoting better sleep. This measure is important as it can help the patient establish a consistent sleep routine and reduce the dependence on medication for sleep. Choice B is incorrect because exercising before bedtime can actually stimulate the body and make it harder to fall asleep. Choice C is incorrect because consuming heavy meals in the evening can lead to indigestion and discomfort, making it difficult to sleep. Choice D is incorrect because drinking hot tea or coffee just before bedtime can interfere with sleep due to the caffeine content, which is a stimulant.
Question 2 of 5
A patient who has recently started therapy on a statin drug asks the nurse how long it will take until he sees an effect on his serum cholesterol. Which statement would be the nurse’s best response?
Correct Answer: B
Rationale: The correct answer is B: “It takes 6 to 8 weeks to see a change in cholesterol levels.” This is because statins typically take time to reach their full effect on lowering cholesterol levels by inhibiting the enzyme involved in cholesterol production. Within 6 to 8 weeks, the patient can expect to see a significant reduction in their serum cholesterol levels. Choice A is incorrect because blood levels do not return to normal within a week of beginning statin therapy. Choice C is incorrect as it typically does not take 6 months to see a change in cholesterol levels with statins. Choice D is incorrect as significant results can be seen before a year of therapy.
Question 3 of 5
The nurse is teaching a patient with iron-deficiency anemia about foods to increase iron intake. Which food may enhance the absorption of oral iron forms?
Correct Answer: D
Rationale: The correct answer is D: Orange juice. This is because orange juice contains vitamin C, which enhances the absorption of iron. Vitamin C helps convert non-heme iron (the type found in plants) into a form that is more easily absorbed by the body. Milk (choice A) and yogurt (choice B) contain calcium and casein, which can inhibit iron absorption. Antacids (choice C) can also decrease iron absorption by altering stomach acidity. Therefore, consuming orange juice along with iron-rich foods can help improve iron absorption in patients with iron-deficiency anemia.
Question 4 of 5
Pharmacodynamics involves the following?
Correct Answer: B
Rationale: Pharmacodynamics refers to how drugs interact with the body to produce their effects, including both desired and undesired effects. Choice B is correct as it specifically mentions information about unwanted effects, which is a key aspect of pharmacodynamics. Choices A, C, and D are incorrect as they do not directly relate to the effects of drugs on the body. Choice A focuses on drug absorption mechanisms, Choice C refers to biological barriers not directly related to drug effects, and Choice D pertains to drug excretion rather than drug action within the body. Therefore, choice B is the most relevant to pharmacodynamics.
Question 5 of 5
Local anesthetics are:
Correct Answer: A
Rationale: Local anesthetics are weak bases because they exist mostly in their uncharged form at physiological pH, allowing them to penetrate cell membranes and reach their target site within nerve fibers. The uncharged form can then interact with ion channels to block nerve conduction. Weak acids (choice B) and salts (choice C) are not characteristic of local anesthetics as they do not exhibit the same pharmacological properties needed for nerve blockade. Choice D is incorrect as local anesthetics are indeed weak bases.