The adverse effects of xanthene are related to the theophylline levels in the blood and include brain damage.

True.

False.

Answer and Explanation

The Correct Answer is A

Choice A rationale

True. Xanthine derivatives like theophylline can cause serious adverse effects, including brain damage, when blood levels become too high. It is critical to monitor theophylline levels to prevent toxicity and associated neurological complications.

Choice B rationale

False. If xanthine levels remain within therapeutic ranges, the risk of brain damage is minimized. However, this statement is incorrect as it does not acknowledge the potential severity of the adverse effects linked to elevated theophylline levels.

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Correct Answer is D

Explanation

Choice A rationale

Itching and rash are not common adverse effects associated with calcium-channel blockers. They are more commonly related to other classes of medications.

Choice B rationale

Hypertension and tachycardia are not typical adverse effects of calcium-channel blockers. These medications are usually prescribed to treat hypertension and can actually cause a reduction in heart rate.

Choice C rationale

Nausea and diarrhea are possible side effects of many medications, but they are not specific adverse effects commonly linked to calcium-channel blockers.

Choice D rationale

Headache and dizziness are common adverse effects of calcium-channel blockers. These medications can cause vasodilation, leading to headaches and a decrease in blood pressure, which may result in dizziness, especially when standing up quickly. .

A. Pharmacodynamics. B. Pharmacotherapeutics. C. Pharmacoeconomics. D. Pharmacokinetics.

Correct Answer is B

Explanation

Choice A rationale

Pharmacodynamics is the study of how drugs affect the body, including the mechanisms of action and the relationship between drug concentration and effect. It does not describe the actions of the nurses in this context.

Choice B rationale

Pharmacotherapeutics involves the use of drugs to diagnose, treat, and prevent disease. The actions of the nurses in administering iodine, chemotherapy, and vaccines are examples of pharmacotherapeutics, as they are using drugs for therapeutic purposes.

Choice C rationale

Pharmacoeconomics is the study of the cost and value of drugs and therapies. It does not describe the actions of the nurses in administering medications.

Choice D rationale

Pharmacokinetics is the study of how the body absorbs, distributes, metabolizes, and excretes drugs. It does not describe the actions of the nurses in this context.

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The adverse effects of xanthene are related to the theophylline levels in the blood and include brain damage.

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Naxlex Comprehensive Predictor Exams

The nurse is caring for a patient who is taking a calcium-channel blocker.What adverse effects would the nurse caution this patient about?

Correct Answer is D

Explanation

Correct Answer is B

Explanation

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