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. Potassium-sparing diuretics primarily affect which part of the kidney?

• A. Proximal convoluted tubule
• B. Loop of Henle
• C. Collecting duct
• D. Distal convoluted tubule

Correct answer: D

Rationale: Potassium-sparing diuretics exert their primary effects on the distal convoluted tubule in the kidney. By acting on this specific part of the nephron, these diuretics promote sodium excretion while sparing potassium, thus helping to maintain potassium levels in the body. This mechanism differs from other diuretics that may cause potassium loss as a side effect. Understanding the site of action of potassium-sparing diuretics is crucial in clinical practice for managing conditions like hypertension and edema where diuresis is necessary without the risk of hypokalemia.

3. A client is to receive Tetracaine prior to a Bronchoscopy. Which of the following actions should the nurse include in the plan of care?

• A. Keep the client NPO until the pharyngeal response returns.
• B. Monitor the insertion site for a hematoma.
• C. Palpate the bladder to detect urinary retention.
• D. Maintain the client on bed rest for 12 hours following the procedure.

Correct answer: A

Rationale: The correct action the nurse should include in the plan of care is to keep the client NPO until the pharyngeal response returns. This is important to prevent aspiration until the client's normal pharyngeal sensation is restored, typically within about 1 hour after the procedure. Monitoring the insertion site for a hematoma, palpating the bladder, and maintaining the client on bed rest are not directly related to the administration of Tetracaine prior to a Bronchoscopy. Therefore, these actions are not necessary in the immediate post-procedure care of a client receiving Tetracaine for a Bronchoscopy.

4. A client has a new prescription for Hydrochlorothiazide. Which of the following information should the nurse include?

• A. Take the medication with food.
• B. Plan to take the medication at bedtime.
• C. Expect increased swelling of the ankles.
• D. Limit fluid intake in the morning.

Correct answer: A

Rationale: When educating a client about taking Hydrochlorothiazide, the nurse should advise taking the medication with food or after meals to prevent gastrointestinal upset. This medication is a diuretic, so it is important to maintain adequate fluid intake throughout the day to prevent dehydration. Taking it at bedtime is not necessary, and increased swelling of the ankles is not an expected side effect of this medication. Limiting fluid intake in the morning is not necessary and could lead to dehydration, which is a potential side effect of this diuretic.

5. What is a desired outcome of the drug Phenytoin?

• A. Decrease symptoms of PTSD
• B. Resolution of signs of infection
• C. Decrease or cessation of seizures without excessive sedation
• D. Prevention or relief of bronchospasm

Correct answer: C

Rationale: The correct answer is C: Decrease or cessation of seizures without excessive sedation. Phenytoin is primarily used as an antiepileptic medication to manage and prevent seizures. It does not directly impact symptoms of PTSD (Choice A), resolution of signs of infection (Choice B), or prevention or relief of bronchospasm (Choice D). Therefore, the desired outcome of Phenytoin is to control seizures effectively while avoiding excessive sedation.

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