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. When teaching a client how to use nitroglycerin transdermal ointment for angina, which instruction should the nurse include?
- A. Remove the prior dose before applying a new dose.
- B. Rub the ointment directly into your skin until it is no longer visible.
- C. Cover the applied ointment with a clean gauze pad.
- D. Apply the ointment to the same skin area each time.
Correct answer: A
Rationale: The correct instruction is to remove the prior dose before applying a new dose. This helps prevent toxicity by ensuring the client does not inadvertently apply an excessive amount of nitroglycerin.
3. A healthcare provider is reviewing the health record of a client who asks about using Propranolol to treat hypertension. The provider should recognize which of the following conditions is a contraindication for taking propranolol?
- A. Asthma
- B. Glaucoma
- C. Hypertension
- D. Tachycardia
Correct answer: A
Rationale: The correct answer is A: Asthma. Propranolol is a nonselective beta-adrenergic blocker that blocks both beta1 and beta2 receptors. Blockade of beta2 receptors in the lungs causes bronchoconstriction, making it contraindicated in clients with asthma. Using propranolol in asthma can exacerbate bronchoconstriction and potentially lead to respiratory distress or exacerbation of asthma symptoms. Choices B, C, and D are incorrect. Glaucoma, hypertension, and tachycardia are not contraindications for taking propranolol. In fact, propranolol is commonly used to treat hypertension and tachycardia.
4. A client is starting therapy with cisplatin. The healthcare provider should instruct the client to report which of the following adverse effects?
- A. Tinnitus
- B. Nausea
- C. Constipation
- D. Weight gain
Correct answer: A
Rationale: The correct answer is tinnitus. Cisplatin can cause ototoxicity, which may manifest as tinnitus. Tinnitus should be reported promptly to the healthcare provider to prevent further hearing damage.
5. A healthcare provider is educating a client who has a prescription for Theophylline. Which of the following instructions should the healthcare provider include?
- A. Avoid caffeine while taking this medication.
- B. You should increase your fluid intake.
- C. Take this medication in the evening.
- D. You may experience increased appetite while on this medication.
Correct answer: A
Rationale: The correct answer is A: 'Avoid caffeine while taking this medication.' Caffeine can increase the risk of theophylline toxicity as it competes for the same metabolic pathways. Consuming caffeine while on theophylline can lead to adverse effects. Choice B is incorrect because although maintaining adequate hydration is important, it is not a specific instruction related to theophylline use. Choice C is incorrect as the timing of the medication administration should be based on the healthcare provider's recommendation and the client's individual needs. Choice D is incorrect as increased appetite is not a common side effect associated with theophylline.
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