a patient with hyperthyroidism is prescribed propylthiouracil ptu what is the primary purpose of this medication
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1. A patient with hyperthyroidism is prescribed propylthiouracil (PTU). What is the primary purpose of this medication?

Correct answer: B

Rationale: Propylthiouracil (PTU) is a medication used to treat hyperthyroidism by suppressing the production of thyroid hormones. It works by inhibiting the enzyme responsible for the synthesis of thyroid hormones, thereby reducing their levels in the body. This helps to alleviate the symptoms of hyperthyroidism and restore thyroid hormone levels to normal range.

2. Which problem in a client requires the most immediate intervention by the nurse?

Correct answer: B

Rationale: The correct answer is B: Increasing sharp pain related to compartment syndrome. Compartment syndrome is a serious condition where increased pressure within a muscle compartment compromises circulation and can lead to tissue damage. Immediate intervention is crucial to prevent permanent damage to muscles and nerves, including tissue necrosis and nerve injury. Choices A, C, and D do not present the same level of urgency as compartment syndrome, making them less critical for immediate intervention. Carpal tunnel syndrome, Morton's neuroma, and plantar fasciitis may cause discomfort and functional limitations but are not typically considered emergencies requiring urgent intervention like compartment syndrome.

3. A 70-year-old man presents with sudden onset of severe abdominal pain. He has a history of atrial fibrillation. Physical examination reveals a soft abdomen with minimal tenderness. What is the most likely diagnosis?

Correct answer: B

Rationale: The sudden onset of severe abdominal pain in a patient with atrial fibrillation, along with a soft abdomen and minimal tenderness on examination, suggest mesenteric ischemia due to embolic occlusion of the mesenteric arteries. This condition is characterized by a sudden and severe decrease in blood flow to the intestines, leading to abdominal pain and tenderness. Acute pancreatitis typically presents with epigastric pain that may radiate to the back, accompanied by elevated serum amylase and lipase levels. Peptic ulcer disease and diverticulitis usually do not manifest with the sudden onset of severe abdominal pain as described in the case.

4. Why is a low-protein diet recommended for a client with hepatic encephalopathy?

Correct answer: C

Rationale: A low-protein diet is recommended for clients with hepatic encephalopathy to reduce ammonia levels. Ammonia, a byproduct of protein metabolism, can accumulate in the blood due to impaired liver function. Elevated ammonia levels can lead to worsening hepatic encephalopathy, a condition characterized by cognitive and neurological disturbances. Therefore, by limiting protein intake, the production of ammonia is reduced, thereby helping to manage hepatic encephalopathy. Choices A, B, and D are incorrect because hepatic encephalopathy is not primarily related to hyperglycemia, hypoglycemia, or electrolyte imbalance. The focus is on reducing ammonia levels to improve the condition.

5. A patient is admitted with a diagnosis of myasthenia gravis. What symptom should the nurse expect to find during the assessment?

Correct answer: B

Rationale: Myasthenia gravis is a neuromuscular disorder characterized by muscle weakness and fatigue, especially in the voluntary muscles. Patients with myasthenia gravis commonly experience weakness in muscles that control eye movements, facial expressions, chewing, swallowing, and speaking. This weakness typically worsens with activity and improves with rest. Joint pain, loss of sensation, and severe headaches are not typical symptoms of myasthenia gravis. Therefore, the correct answer is muscle weakness (choice B) as it aligns with the characteristic symptom of myasthenia gravis.

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