Nursing Elites

1. What is the therapeutic use of Phenytoin?

• A. Replacement in hypothyroidism to restore normal hormonal balance
• B. Diminished accumulation of acid in the gastric lumen with lessened gastroesophageal reflux
• C. Diminished seizure activity, termination of ventricular arrhythmias
• D. Prevention of thrombus formation, prevention of extension of existing thrombi

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 Metronidazole. Which of the following instructions should be included?

• A. Avoid drinking alcohol while taking this medication.
• B. Take the medication on an empty stomach.
• C. Increase your intake of green, leafy vegetables.
• D. Discontinue the medication if you experience a metallic taste.

Correct answer: A

Rationale: The correct instruction for a client prescribed Metronidazole is to avoid drinking alcohol while taking this medication. Metronidazole can cause a disulfiram-like reaction when combined with alcohol, resulting in severe nausea, vomiting, and other adverse effects. Therefore, it is crucial for clients to refrain from consuming alcohol during treatment to prevent these potential complications. Choice B is incorrect because Metronidazole can be taken with or without food. Choice C is irrelevant as there is no specific requirement to increase green, leafy vegetable intake with Metronidazole. Choice D is incorrect as a metallic taste is a known side effect of Metronidazole but does not necessarily indicate the need to discontinue the medication.

3. A client has a new prescription for Digoxin to treat heart failure. Which of the following findings should the nurse monitor as an adverse effect?

• A. Visual disturbances
• B. Dry cough
• C. Confusion
• D. Urinary retention

Correct answer: A

Rationale: Visual disturbances, such as blurred or yellow vision, can be an early sign of digoxin toxicity. Monitoring for visual changes is crucial to detect and prevent potential adverse effects of digoxin. Dry cough, confusion, and urinary retention are not commonly associated adverse effects of digoxin and are not typically monitored in relation to this medication.

4. A client in the emergency department has Benzodiazepine toxicity due to an overdose. Which of the following actions is the nurse's priority?

• A. Administer flumazenil.
• B. Identify the client's level of orientation.
• C. Infuse IV fluids.
• D. Prepare the client for gastric lavage.

Correct answer: B

Rationale: In a situation where a client presents with Benzodiazepine toxicity, the priority action for the nurse is to assess the client. By identifying the client's level of orientation, the nurse can gather crucial information about the client's mental status, which is essential for determining the appropriate care and interventions needed. Administering flumazenil is used to reverse the effects of benzodiazepines but should be based on a comprehensive assessment. Infusing IV fluids and preparing for gastric lavage may be necessary interventions but should follow a thorough assessment of the client's condition to ensure proper prioritization of care.

5. A preschooler weighing 44 lb is to receive Amoxicillin 20 mg/kg/day PO divided equally every 12 hr. The available amoxicillin suspension is 250 mg/5 mL. How many mL should the nurse administer per dose?

• A. 4 mL
• B. 5 mL
• C. 6 mL
• D. 3 mL

Correct answer: A

Rationale: To calculate the dosage per administration: First, convert the weight to kg (44 lb / 2.2 lb/kg = 20 kg). Then, calculate the required dosage per dose: (20 mg/kg/day x 20 kg) / 2 (for every 12 hr dosing) = 200 mg per dose. To determine the mL per dose, divide the required dosage by the concentration of the amoxicillin suspension: (200 mg / 250 mg) x 5 mL = 4 mL per dose. Therefore, the correct answer is 4 mL. Choice B (5 mL) is incorrect because the correct calculation yields 4 mL. Choices C (6 mL) and D (3 mL) are also incorrect as they do not align with the accurate calculation based on the provided information.

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