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 Cyanocobalamin (Vitamin B12) injections. Which of the following client statements indicates an understanding of the teaching?

• A. I will need to take this medication for the rest of my life.
• B. I will stop taking the medication when my symptoms improve.
• C. I should take this medication with food.
• D. I will need to avoid green, leafy vegetables while taking this medication.

Correct answer: A

Rationale: The correct answer is A. Clients with pernicious anemia or other causes of vitamin B12 deficiency may need to take cyanocobalamin for life to prevent deficiency. It is a lifelong treatment in many cases to maintain adequate B12 levels. Choice B is incorrect because stopping the medication when symptoms improve may lead to a relapse of the deficiency. Choice C is incorrect as cyanocobalamin injections are usually administered on an empty stomach. Choice D is incorrect as there is no need to avoid green, leafy vegetables while taking cyanocobalamin; in fact, these vegetables are good dietary sources of vitamin B12.

3. A client is receiving combination chemotherapy. Which of the following findings should the nurse identify as an indication of an oncologic emergency?

• A. Dry oral mucous membranes
• B. Nausea and vomiting
• C. Temperature of 38.1°C (100.6°F)
• D. Anorexia

Correct answer: C

Rationale: A temperature of 38.1°C (100.6°F) can indicate an infection, which is considered an oncologic emergency in clients receiving chemotherapy due to the increased risk of sepsis in immunocompromised individuals. Dry oral mucous membranes (Choice A), nausea and vomiting (Choice B), and anorexia (Choice D) are common side effects of chemotherapy but do not typically indicate an oncologic emergency requiring immediate intervention.

4. A client is receiving IV Dopamine for the treatment of shock. Which of the following findings indicates that the medication is effective?

• A. Increased heart rate
• B. Decreased blood pressure
• C. Increased urine output
• D. Decreased respiratory rate

Correct answer: C

Rationale: The correct answer is increased urine output. Dopamine increases cardiac output and improves renal perfusion, leading to increased urine output. This response indicates that the medication is effective in treating shock by enhancing renal function and perfusion. Choices A, B, and D are incorrect because an increased heart rate, decreased blood pressure, and decreased respiratory rate are not findings that indicate the effectiveness of IV Dopamine in treating shock.

5. A healthcare provider is reviewing the health care record of a client who reports urinary incontinence and asks about a prescription for Oxybutynin. The provider should recognize that Oxybutynin is contraindicated in the presence of which of the following conditions?

• A. Bursitis
• B. Sinusitis
• C. Depression
• D. Glaucoma

Correct answer: D

Rationale: Oxybutynin is an anticholinergic medication that can increase intraocular pressure. It is contraindicated in clients with glaucoma, as it can worsen the condition. Glaucoma is a condition characterized by increased intraocular pressure, and using Oxybutynin can further elevate this pressure, potentially leading to serious complications such as vision impairment or damage to the optic nerve. Choices A, B, and C are incorrect as bursitis, sinusitis, and depression are not contraindications for Oxybutynin use. Therefore, the correct answer is D, Glaucoma.

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