The adverse effects of xanthene are related to the theophylline levels in the blood and include brain damage.
True.
False.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Thiazide diuretics do not block the sodium pump. They act primarily on the distal convoluted tubule in the kidneys.
Choice B rationale
Thiazide diuretics block the chloride pump in the distal convoluted tubule, preventing the reabsorption of sodium and chloride, leading to increased urine output and decreased blood pressure.
Choice C rationale
Thiazide diuretics do not block the carbonic anhydrase pump. This action is associated with carbonic anhydrase inhibitors.
Choice D rationale
Thiazide diuretics do not block the potassium pump. They can cause potassium loss as a side effect, but this is not their primary mechanism of action.
Correct Answer is C
Explanation
Choice A rationale
Poor self-care is not directly associated with reddened, bleeding gums in this context.
Choice B rationale
While aspirin can cause bleeding issues, the context here is related to seizure disorder and phenytoin.
Choice C rationale
Phenytoin, an anticonvulsant used to manage seizures, can cause gingival hyperplasia, leading to reddened and bleeding gums.
Choice D rationale
Hepatotoxicity is related to liver damage and does not present with reddened, bleeding gums.
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