ATI RN
ATI Pharmacology
1. A healthcare professional 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 professional 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 trough levels of a medication, the healthcare professional should obtain a blood specimen immediately before administering the next dose of medication. This timing ensures an accurate representation of the medication's lowest concentration in the bloodstream, which is crucial for therapeutic monitoring and dose adjustments. Choice B is incorrect because waiting 24 hours after taking the medication would not provide an accurate trough level. Choice C is incorrect as urine specimens are not used to measure trough levels. Choice D is incorrect because obtaining a blood specimen 30 minutes after administering the medication would not reflect the trough level, as it is the lowest concentration before the next dose.
2. A drug ending in the suffix (tidine) is considered a ______.
- A. Antidepressant
- B. Protease inhibitor
- C. Beta antagonist
- D. H antagonist
Correct answer: D
Rationale: Drugs ending in -tidine are histamine (H2) receptor antagonists, which block the action of histamine at the H2 receptors, commonly used to reduce stomach acid production. Therefore, the correct answer is an 'H antagonist.' It is essential to be familiar with drug suffixes as they can provide clues to the drug's class and function.
3. A client asks a nurse about Feverfew. Which response should the nurse provide?
- A. It is used to treat skin infections.
- B. It can decrease the frequency of migraine headaches.
- C. It can lessen the nasal congestion in the common cold.
- D. It can relieve nausea of morning sickness during pregnancy.
Correct answer: B
Rationale: The correct response is B: 'It can decrease the frequency of migraine headaches.' Feverfew is known for reducing the frequency of migraine headaches, but it has not been proven to relieve an existing migraine headache. Choices A, C, and D are incorrect because Feverfew is not used to treat skin infections, lessen nasal congestion in the common cold, or relieve nausea of morning sickness during pregnancy.
4. A client has anemia and a new prescription for ferrous sulfate liquid. Which of the following instructions should the nurse provide?
- A. Take the medication on an empty stomach to decrease gastrointestinal irritation.
- B. Take the medication with orange juice to enhance absorption.
- C. Take the medication with milk.
- D. Rinse the mouth before taking the iron.
Correct answer: B
Rationale: Taking ferrous sulfate with orange juice can help increase the absorption of iron. Orange juice contains vitamin C, which aids in the absorption of iron from the medication. This combination can enhance the effectiveness of the iron supplement for a client with anemia. Option A is incorrect because taking iron on an empty stomach can cause gastrointestinal upset. Option C is incorrect because calcium in milk can inhibit iron absorption. Option D is irrelevant to enhancing iron absorption.
5. A healthcare professional in an emergency unit is reviewing the medical record of a client who is being evaluated for angle-closure glaucoma. Which of the following findings is indicative of this condition?
- A. Insidious onset of painless loss of vision
- B. Gradual reduction in peripheral vision
- C. Severe pain around the eyes
- D. Intraocular pressure 12 mm Hg
Correct answer: C
Rationale: Severe pain around the eyes that radiates over the face is a classic symptom of acute angle-closure glaucoma. This intense pain is often associated with other symptoms such as blurred vision, halos around lights, redness in the eye, and sometimes nausea and vomiting. Immediate medical attention is required to prevent permanent vision loss. Choices A, B, and D are incorrect. Insidious onset of painless loss of vision is more indicative of conditions like macular degeneration. Gradual reduction in peripheral vision is commonly seen in conditions like open-angle glaucoma. An intraocular pressure of 12 mm Hg is within the normal range and is not typical of angle-closure glaucoma.
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