what is the therapeutic use of phenytoin
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Nursing Elites

ATI RN

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 client has a new prescription for clonidine to treat hypertension. Which of the following instructions should the nurse include?

Correct answer: C

Rationale: The correct instruction for a client starting clonidine therapy for hypertension is to avoid driving until their reaction to the medication is known. Clonidine can cause drowsiness, so engaging in activities like driving that require alertness should be avoided until the individual understands how the medication affects them. Choices A, B, and D are incorrect because they do not address the specific side effect of drowsiness associated with clonidine that could impair driving abilities. Discontinuing the medication if a rash develops, expecting increased salivation, or stopping the medication for dry mouth are not primary concerns related to clonidine therapy for hypertension.

3. A healthcare provider is planning to administer Ciprofloxacin IV to a client who has cystitis. Which of the following actions should the healthcare provider take?

Correct answer: B

Rationale: Ciprofloxacin should be infused over 60 minutes to minimize vein irritation and reduce the risk of adverse effects. Administering a concentrated solution can lead to vein irritation and potential complications. Infusing the solution through the primary IV fluid tubing can cause incompatibility issues. Choosing a small peripheral vein may not be suitable for administering Ciprofloxacin, which should be infused through a larger vein to prevent vein irritation and ensure a proper dilution of the medication.

4. Which of the following drugs is associated with extreme photosensitivity as a reaction?

Correct answer: C

Rationale: Tetracycline is known to cause extreme photosensitivity reactions, making individuals more sensitive to sunlight and increasing the risk of severe sunburn. It is essential for patients taking tetracycline to protect themselves from excessive sun exposure to prevent adverse reactions.

5. A client with OCD has a new prescription for Paroxetine. Which of the following instructions should the nurse include?

Correct answer: A

Rationale: The correct instruction for the nurse to include when teaching a client with OCD who has a new prescription for Paroxetine is that it can take several weeks before the client feels like the medication is helping. Paroxetine, like other selective serotonin reuptake inhibitors (SSRIs), can take 1 to 4 weeks before the client reaches the full therapeutic benefit. Therefore, it is important to inform the client about this delay in onset of action to manage their expectations and promote adherence to the treatment plan. Choices B, C, and D are incorrect because taking Paroxetine before bedtime is not necessary, it should be taken consistently at the same time each day; Paroxetine is usually taken regularly, not as needed; and while monitoring weight is important, it is not a specific instruction related to the onset of action for Paroxetine.

Similar Questions

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A client has a new prescription for Methotrexate. Which of the following instructions should be included in the teaching?
A client has been prescribed Phenelzine for depression. Which of the following indicates that the client has developed an adverse effect of this medication?
A client is prescribed Clopidogrel. Which of the following laboratory values should the nurse monitor to assess for potential adverse effects?
A client is being discharged and will start long-term oral prednisone for chronic asthma treatment. The client should monitor for which of the following adverse effects of this medication?

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