ATI RN
ATI Pharmacology
1. A nurse reviewing a client's medical record notes a new prescription for verifying the trough level of the client's medication. Which of the following actions should the nurse take?
- A. Obtain a blood specimen immediately prior to administering the next dose of medication.
- B. Verify that the client has been taking the medication for 24 hours before obtaining a blood specimen.
- C. Ask the client to provide a urine specimen after the next dose of medication.
- D. Administer the medication and obtain a blood specimen 30 minutes later.
Correct answer: A
Rationale: To verify the trough levels of a medication accurately, the nurse should obtain a blood specimen immediately before administering the next dose of the medication. The trough level represents the lowest concentration of the medication in the bloodstream, typically right before the next dose is due. This timing ensures an accurate assessment of the drug's concentration in the body at its lowest point, aiding in determining the drug's effectiveness and potential toxicity levels. Choice B is incorrect because waiting for 24 hours would not provide the trough level. Choice C is incorrect as urine specimens are not used to measure trough levels. Choice D is incorrect as obtaining a blood specimen 30 minutes after administering the medication would not reflect the trough level.
2. A healthcare professional in a provider's office is monitoring serum electrolytes for four older adult clients who take digoxin. Which of the following electrolyte values increases a client's risk for Digoxin toxicity?
- A. Calcium 9.2 mg/dL
- B. Calcium 10.3 mg/dL
- C. Potassium 3.4 mEq/L
- D. Potassium 4.8 mEq/L
Correct answer: C
Rationale: The correct answer is C: Potassium 3.4 mEq/L. Potassium 3.4 mEq/L is below the expected reference range and puts a client at risk for digoxin toxicity. Low potassium levels can lead to fatal dysrhythmias, especially in older clients taking Digoxin, as potassium plays a crucial role in the heart's electrical activity. Choices A and B are related to calcium levels, which do not directly increase the risk of Digoxin toxicity. Choice D, Potassium 4.8 mEq/L, is within the expected reference range and would not increase the risk of Digoxin toxicity.
3. When admitting a client and completing a preassessment before administering medications, which of the following data should the nurse include? (Select all that apply.)
- A. Use of herbal teas
- B. Daily fluid intake
- C. Current health status
- D. Previous surgical history
Correct answer: A
Rationale: The correct answer is A, 'Use of herbal teas.' The nurse should inquire about the client's use of herbal teas because they often contain caffeine, which can impact medication biotransformation. This information is crucial to ensure the safe and effective administration of medications and to prevent potential drug interactions. Choice B, 'Daily fluid intake,' while important for overall assessment, is not directly related to medication administration. Choice C, 'Current health status,' is essential but not specific to medication administration preassessment. Choice D, 'Previous surgical history,' although relevant for a client's medical history, is not directly linked to medication administration preassessment.
4. A client has a new prescription for Clonidine. Which of the following instructions should the nurse include?
- A. Expect to feel drowsy.
- B. Increase your intake of high-potassium foods.
- C. Take the medication with grapefruit juice.
- D. Avoid foods high in fat.
Correct answer: A
Rationale: The correct answer is to expect to feel drowsy. Clonidine is known to cause drowsiness, especially at the beginning of treatment. It is important for clients to be cautious with activities that require alertness until they understand how the medication affects them. Choice B is incorrect as there is no specific need to increase high-potassium foods with Clonidine. Choice C is incorrect as grapefruit juice can interact with many medications but is not a typical instruction for Clonidine. Choice D is incorrect as there is no specific indication to avoid foods high in fat with Clonidine.
5. What is the correct medical term used to describe impaired blood flow in the coronary arteries?
- A. Myocardial infarction
- B. Angina pectoris
- C. Cerebrovascular accident
- D. Coronary heart disease
Correct answer: D
Rationale: The correct medical term for impaired blood flow in the coronary arteries is Coronary heart disease. This condition is characterized by a narrowing or blockage of the coronary arteries, leading to reduced blood flow to the heart muscle. Myocardial infarction (choice A) refers to a heart attack, which occurs when blood flow to a part of the heart is blocked. Angina pectoris (choice B) is chest pain or discomfort that occurs when the heart muscle doesn't receive enough oxygen-rich blood. Cerebrovascular accident (choice C) is the medical term for a stroke, which occurs when blood flow to a part of the brain is interrupted.
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