what is the therapeutic use of phenytoin
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Nursing Elites

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ATI Pharmacology Test Bank

1. What is the therapeutic use of Phenytoin?

Correct answer: C

Rationale: Phenytoin is primarily used to diminish seizure activity and is effective in terminating ventricular arrhythmias. It works by stabilizing neuronal membranes, reducing repetitive neuronal firing, and limiting the spread of seizure activity in the brain. While phenytoin does not have a direct role in preventing thrombus formation or extending existing thrombi, it is crucial in managing seizures and certain arrhythmias.

2. A healthcare provider is reviewing the health care record of a client who is asking about conjugated equine estrogens. The provider should inform the client this medication is contraindicated in which of the following conditions?

Correct answer: D

Rationale: Conjugated equine estrogens are contraindicated in clients with a history of thrombophlebitis due to the increased risk of thrombotic events associated with estrogen use. Thrombophlebitis is characterized by inflammation of a vein with the formation of a clot, and estrogen can further exacerbate this condition, leading to serious complications. Choices A, B, and C are not contraindications for conjugated equine estrogens. Atrophic vaginitis and osteoporosis are conditions where estrogen therapy may actually be indicated. Dysfunctional uterine bleeding is another condition where estrogen therapy can be used to help regulate menstrual bleeding.

3. A client has a new prescription for spironolactone. The client should be monitored for which of the following adverse effects?

Correct answer: A

Rationale: Corrected Rationale: Spironolactone is a potassium-sparing diuretic that can lead to hyperkalemia as an adverse effect. Hyperkalemia is characterized by elevated levels of potassium in the blood, which can be dangerous and lead to cardiac arrhythmias. Therefore, monitoring for signs and symptoms of hyperkalemia is crucial when a client is taking spironolactone. Choices B, C, and D are incorrect because spironolactone is not known to cause hyponatremia, hypokalemia, or hypercalcemia as adverse effects.

4. A client has a new prescription for atenolol. Which of the following findings should the nurse instruct the client to monitor for as an adverse effect of this medication?

Correct answer: C

Rationale: Atenolol is a beta-blocker that works by slowing down the heart rate. An adverse effect of atenolol is bradycardia, characterized by a slower than normal heart rate. The nurse should instruct the client to monitor for signs of bradycardia, such as a slow heart rate, while taking atenolol. Therefore, the correct answer is to monitor for bradycardia. Tachycardia (Choice A) is not an expected adverse effect of atenolol as it actually reduces heart rate. Hypoglycemia (Choice B) is not a typical adverse effect of atenolol. Hypertension (Choice D) is not an adverse effect of atenolol, as atenolol is commonly used to manage hypertension.

5. A client has a new prescription for Digoxin for heart failure. Which of the following adverse effects should the client be instructed to monitor for and report to the provider?

Correct answer: D

Rationale: Yellow-tinged vision is a potential adverse effect of digoxin, which may indicate toxicity. It is crucial for the client to report this symptom promptly to the healthcare provider to prevent any further complications. Dry cough is not typically associated with digoxin use. Pedal edema is a common symptom of heart failure, which digoxin is prescribed to manage. Bruising is not a common adverse effect of digoxin.

Similar Questions

When providing teaching to a client with a prescription for Phenytoin, which of the following instructions should the nurse include?
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A client is receiving spironolactone. Which of the following findings should the nurse report to the provider?
A client is receiving daily doses of Oprelvekin. Which of the following laboratory values should be monitored to determine the effectiveness of this medication?
A healthcare provider is assessing a client who takes Lithium Carbonate for the treatment of Bipolar disorder. The provider should recognize which of the following findings as a possible indication of toxicity to this medication?

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