ATI RN
Proctored Pharmacology ATI
1. What is the correct definition of drug absorption?
- A. Movement of a drug from the site of administration to various tissues of the body
- B. Describes the absorption, distribution, metabolism, and excretion of drugs
- C. These types of drugs can be taken over the counter
- D. This addresses how various drugs affect different forms of the body
Correct answer: A
Rationale: The correct definition of drug absorption is the movement of a drug from the site of administration into various tissues of the body. It is the process by which a drug is taken up and enters the systemic circulation. Choice B describes the pharmacokinetics of drugs, including absorption, distribution, metabolism, and excretion, but it is not a specific definition of drug absorption. Choice C is unrelated to drug absorption, as it refers to over-the-counter drugs. Choice D is too vague and does not specifically address the process of drug absorption.
2. A client has a new prescription for Digoxin. Which of the following instructions should the nurse include?
- A. Take the medication with food.
- B. Monitor your pulse before taking the medication.
- C. Expect to have an increased appetite.
- D. Discontinue the medication if you feel nauseated.
Correct answer: B
Rationale: When educating a client about Digoxin, it is crucial to instruct them to monitor their pulse before taking the medication. Digoxin can lead to bradycardia, so monitoring the pulse is essential to ensure it is not below 60 beats per minute before taking each dose. If the pulse is low, the client should hold the dose and seek guidance from their healthcare provider. Choices A, C, and D are incorrect. Taking Digoxin with food may affect its absorption, Digoxin is not known to increase appetite, and feeling nauseated does not necessarily indicate the need to discontinue the medication.
3. A client has a new prescription for Cyclobenzaprine to treat muscle spasms. Which of the following instructions should the nurse include in the teaching?
- A. Avoid driving or operating heavy machinery while taking this medication.
- B. Take this medication on an empty stomach for best results.
- C. Take this medication only when experiencing muscle pain.
- D. Increase your intake of potassium-rich foods while taking this medication.
Correct answer: A
Rationale: The correct instruction that the nurse should include in the teaching for a client prescribed Cyclobenzaprine is to avoid driving or operating heavy machinery while taking this medication. Cyclobenzaprine can cause drowsiness, so it is important to advise clients to avoid activities that require alertness and coordination to prevent accidents or injuries. Choice B is incorrect because Cyclobenzaprine can be taken with or without food. Choice C is incorrect because Cyclobenzaprine is typically taken regularly as prescribed, not just when experiencing muscle pain. Choice D is incorrect because there is no specific need to increase potassium-rich foods while taking Cyclobenzaprine.
4. A staff educator is reviewing medication dosages and factors that influence medication metabolism with a group of nurses at an in-service presentation. Which of the following factors should the educator include as a reason to administer lower medication dosages? (Select all that apply.)
- A. Increased renal secretion
- B. Increased medication-metabolizing enzymes
- C. Liver failure
- D. Peripheral vascular disease
Correct answer: C
Rationale: Liver failure impairs metabolism, leading to increased medication concentrations. When liver function is compromised, lower dosages are necessary to prevent adverse effects. Increased renal secretion is not a reason for lower medication dosages, as it primarily affects excretion rather than metabolism. Increased medication-metabolizing enzymes would usually require higher dosages to achieve the desired effect. Peripheral vascular disease does not directly impact medication metabolism or dosage requirements.
5. To which pharmacologic classification does the drug propranolol belong?
- A. Beta Blockers
- B. Cholinergics
- C. Immune globulins
- D. Barbiturates
Correct answer: A
Rationale: Propranolol belongs to the pharmacologic classification of Beta Blockers. Beta blockers work by blocking the action of adrenaline and other stress hormones on beta-adrenergic receptors. They are commonly used to manage conditions like high blood pressure, angina, and arrhythmias. Choice B, Cholinergics, is incorrect because cholinergics work by stimulating the parasympathetic nervous system, unlike beta blockers that block adrenergic receptors. Choice C, Immune globulins, is incorrect as it refers to antibodies used to boost the immune system, not the mechanism of action of propranolol. Choice D, Barbiturates, is incorrect as barbiturates are a different class of drugs that act as central nervous system depressants, primarily used as sedatives and anesthetics.
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