ATI LPN
Medical Surgical ATI Proctored Exam
1. A client with hepatic encephalopathy exhibits confusion, difficulty arousing from sleep, and rigid extremities. Based on these clinical findings, what stage of hepatic encephalopathy should the nurse document?
- A. Stage 1
- B. Stage 2
- C. Stage 3
- D. Stage 4
Correct answer: C
Rationale: Stage 3 hepatic encephalopathy is characterized by confusion, difficulty arousing from sleep, and rigidity of extremities. These symptoms indicate advanced manifestations of hepatic encephalopathy, requiring prompt intervention and monitoring to prevent further neurological deterioration.
2. A patient with chronic kidney disease (CKD) is prescribed calcium acetate. What is the primary purpose of this medication?
- A. Treat hyperkalemia
- B. Reduce phosphate levels
- C. Lower blood pressure
- D. Increase hemoglobin levels
Correct answer: B
Rationale: The primary purpose of prescribing calcium acetate to a patient with chronic kidney disease (CKD) is to reduce phosphate levels. Calcium acetate binds to dietary phosphate, preventing its absorption and helping to manage hyperphosphatemia commonly seen in CKD patients.
3. A 35-year-old man presents with fatigue, weight loss, and hyperpigmentation of the skin. Laboratory tests reveal hyponatremia, hyperkalemia, and low cortisol levels. What is the most likely diagnosis?
- A. Cushing's syndrome
- B. Addison's disease
- C. Hypothyroidism
- D. Pheochromocytoma
Correct answer: B
Rationale: The clinical presentation of a 35-year-old man with fatigue, weight loss, hyperpigmentation of the skin, hyponatremia, hyperkalemia, and low cortisol levels is classic for Addison's disease. These findings are consistent with primary adrenal insufficiency, where the adrenal glands fail to produce adequate cortisol. In Addison's disease, the adrenal cortex is damaged, leading to decreased cortisol production and elevated levels of ACTH. This results in symptoms such as fatigue, weight loss, and hyperpigmentation due to increased ACTH production stimulating melanocytes. Hyponatremia and hyperkalemia are common electrolyte abnormalities seen in Addison's disease due to aldosterone deficiency. Therefore, the correct diagnosis in this case is Addison's disease.
4. A patient with peptic ulcer disease is prescribed omeprazole. When should the patient take this medication for optimal effectiveness?
- A. With meals
- B. At bedtime
- C. Before meals
- D. After meals
Correct answer: C
Rationale: Omeprazole should be taken before meals to reduce stomach acid production and promote healing of the ulcer. Taking it before meals ensures that the medication can inhibit acid secretion when the stomach is most active in producing acid, thereby maximizing its effectiveness in treating peptic ulcer disease.
5. A client is on a mechanical ventilator. Which client response indicates that the neuromuscular blocker tubocurarine chloride (Tubarine) is effective?
- A. The client's extremities are paralyzed.
- B. The peripheral nerve stimulator causes twitching.
- C. The client clenches fist upon command.
- D. The client's Glasgow Coma Scale score is 14.
Correct answer: A
Rationale: The correct answer is A. Tubocurarine chloride is a neuromuscular blocker that works by causing paralysis of skeletal muscles. Therefore, if the client's extremities are paralyzed, it indicates that the medication is effective in achieving the desired muscle relaxation necessary for mechanical ventilation. Choices B and C are incorrect as they suggest muscle activity, which would not be expected with the administration of a neuromuscular blocker. Choice D is unrelated to the effectiveness of tubocurarine chloride.
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