what is the therapeutic action of phenytoin
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Nursing Elites

ATI RN

ATI Pharmacology Proctored Exam 2024

1. What is the therapeutic action of Phenytoin?

Correct answer: B

Rationale: Phenytoin is primarily used as an anticonvulsant to prevent and control seizures. It works by stabilizing electrical activity in the brain, making it effective in managing conditions like epilepsy. Antidiabetic medications are used to regulate blood sugar levels, mood stabilizers help manage mood disorders, and antianxiety agents are used to reduce anxiety symptoms, none of which are the primary therapeutic action of Phenytoin.

2. A client has a prescription for Hydrochlorothiazide. Which of the following instructions should the nurse include?

Correct answer: D

Rationale: The correct answer is to monitor for signs of dehydration. Hydrochlorothiazide is a diuretic that can lead to fluid loss and electrolyte imbalance, potentially causing dehydration. Signs of dehydration include dry mouth, increased thirst, and decreased urine output. It is important for the client to be vigilant in monitoring and reporting these symptoms to healthcare providers to prevent complications. Choices A, B, and C are incorrect because taking the medication in the morning, increasing potassium-rich foods, or taking the medication with food are not specific instructions related to the potential side effects of Hydrochlorothiazide.

3. When reviewing facility policies for IV therapy with the team, a nurse manager should remind the team that which technique helps minimize the risk of catheter embolism?

Correct answer: D

Rationale: Avoiding reinserting the needle into an IV catheter is crucial to minimizing the risk of catheter embolism. Reinserting the needle can lead to the severing of the catheter's end, potentially causing a catheter embolism, a serious complication. The other options, while important for IV therapy safety, are not directly related to preventing catheter embolism.

4. A client has a new prescription for alendronate to treat osteoporosis. Which of the following instructions should be included in the teaching?

Correct answer: A

Rationale: The correct instruction for taking alendronate is to take it with a full glass of water after rising in the morning to prevent esophageal irritation. It is important to remain upright for at least 30 minutes after taking the medication to reduce the risk of esophageal irritation and ensure proper absorption. Taking the medication with a meal or crushing the tablet are not recommended instructions for alendronate administration. Choice A is the correct answer as it aligns with the proper administration guidelines for alendronate.

5. A nurse orienting a newly licensed nurse is reviewing the procedure for taking a telephone prescription. Which of the following statements should the nurse identify as an indication that the newly licensed nurse understands the process?

Correct answer: B

Rationale: The correct answer is B: 'Another nurse should listen to the phone call.' When taking a telephone prescription, having another nurse listen to the phone call is essential to prevent errors in communication. This process helps ensure accuracy and reduces the risk of misinterpretation. Choice A is incorrect because entering the prescription into the client's medical record is not related to verifying the accuracy of the telephone prescription. Choice C is incorrect as the provider clarifying the prescription upon signing the health record doesn't address the immediate need for verification during the phone call. Choice D is incorrect because the 'read back' is a crucial step in confirming the accuracy of all prescriptions, regardless of whether they are one-time or recurring.

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