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 healthcare provider is educating a client who has a prescription for Theophylline. Which of the following instructions should the healthcare provider include?

• A. Avoid caffeine while taking this medication.
• B. You should increase your fluid intake.
• C. Take this medication in the evening.
• D. You may experience increased appetite while on this medication.

Correct answer: A

Rationale: The correct answer is A: 'Avoid caffeine while taking this medication.' Caffeine can increase the risk of theophylline toxicity as it competes for the same metabolic pathways. Consuming caffeine while on theophylline can lead to adverse effects. Choice B is incorrect because although maintaining adequate hydration is important, it is not a specific instruction related to theophylline use. Choice C is incorrect as the timing of the medication administration should be based on the healthcare provider's recommendation and the client's individual needs. Choice D is incorrect as increased appetite is not a common side effect associated with theophylline.

3. A healthcare provider is assessing a client who is taking levothyroxine. The healthcare provider should recognize that which of the following findings is a manifestation of levothyroxine overdose?

• A. Insomnia
• B. Constipation
• C. Drowsiness
• D. Hypoactive deep-tendon reflexes

Correct answer: A

Rationale: Insomnia is a common symptom of levothyroxine overdose due to excessive stimulation of the central nervous system. Levothyroxine is a thyroid hormone replacement medication, and an overdose can lead to hyperthyroidism symptoms, including insomnia. Constipation and drowsiness are not typically associated with levothyroxine overdose. Hypoactive deep-tendon reflexes are more indicative of hypothyroidism rather than an overdose of levothyroxine.

4. When should Montelukast be taken?

• A. At least two hours before exercise
• B. Daily in the evening
• C. Two hours before exercise or daily in the evening
• D. None of the above

Correct answer: B

Rationale: Montelukast should be taken daily in the evening to effectively manage asthma symptoms. Taking it at the same time each day helps maintain a consistent level of the medication in the body, providing optimal control over asthma symptoms and inflammation. Choice A is incorrect because Montelukast should not be taken specifically before exercise, but rather daily. Choice C is incorrect because although taking Montelukast two hours before exercise is not necessary, taking it daily in the evening is essential for its effectiveness. Choice D is incorrect as Montelukast should be taken daily to manage asthma.

5. When admitting a client and completing a preassessment before administering medications, which of the following data should the nurse include? (Select all that apply.)

• A. Use of herbal teas
• B. Daily fluid intake
• C. Current health status
• D. Previous surgical history

Correct answer: A

Rationale: The correct answer is A, 'Use of herbal teas.' The nurse should inquire about the client's use of herbal teas because they often contain caffeine, which can impact medication biotransformation. This information is crucial to ensure the safe and effective administration of medications and to prevent potential drug interactions. Choice B, 'Daily fluid intake,' while important for overall assessment, is not directly related to medication administration. Choice C, 'Current health status,' is essential but not specific to medication administration preassessment. Choice D, 'Previous surgical history,' although relevant for a client's medical history, is not directly linked to medication administration preassessment.

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