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ATI Adult Medical Surgical
1. A patient with hyperthyroidism is prescribed propylthiouracil (PTU). What is the primary purpose of this medication?
- A. Increase thyroid hormone production
- B. Suppress thyroid hormone production
- C. Enhance iodine absorption
- D. Stimulate the thyroid gland
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. A 45-year-old woman with occasional indigestion has had episodes of chest pain and dysphagia to both solids and liquids. An upper GI series and EGD fail to disclose any structural abnormalities. What is the most appropriate initial therapy?
- A. Sucralfate
- B. Proton pump inhibitor
- C. Prokinetic agent
- D. Benzodiazepine
Correct answer: B
Rationale: The patient's symptoms of chest pain and dysphagia suggest esophageal spasm, often related to underlying gastroesophageal reflux. The initial therapy should focus on acid suppression. Proton pump inhibitors are the preferred choice to reduce acid production and alleviate symptoms. If proton pump inhibitors are ineffective, other options like smooth muscle relaxants or antidepressants may be considered. A Heller myotomy is not indicated in this case as the patient does not have achalasia.
3. A client with schizophrenia is prescribed haloperidol (Haldol). The nurse should monitor the client for which potential side effect?
- A. Tardive dyskinesia.
- B. Orthostatic hypotension.
- C. Photosensitivity.
- D. Hyperglycemia.
Correct answer: A
Rationale: The correct answer is A: Tardive dyskinesia. Haloperidol (Haldol) is an antipsychotic medication that can lead to tardive dyskinesia, a side effect characterized by involuntary, repetitive movements of the face and body. Monitoring for this side effect is crucial to provide timely interventions and prevent further complications.
4. The client with chronic kidney disease (CKD) is receiving hemodialysis. Which finding should be reported to the healthcare provider immediately?
- A. Blood pressure of 150/90 mm Hg.
- B. Weight gain of 2 pounds since the last dialysis session.
- C. Blood glucose level of 120 mg/dl.
- D. Potassium level of 6.5 mEq/L.
Correct answer: D
Rationale: A potassium level of 6.5 mEq/L is dangerously high, a condition known as hyperkalemia, which can lead to severe cardiac complications like arrhythmias and cardiac arrest. Immediate medical intervention is necessary to lower potassium levels to prevent life-threatening outcomes in clients undergoing hemodialysis.
5. A 70-year-old man presents with weight loss, jaundice, and a palpable mass in the right upper quadrant. Laboratory tests reveal elevated bilirubin and alkaline phosphatase levels. What is the most likely diagnosis?
- A. Gallstones
- B. Hepatitis
- C. Pancreatic cancer
- D. Primary biliary cirrhosis
Correct answer: C
Rationale: The presentation of a 70-year-old man with weight loss, jaundice, a palpable mass in the right upper quadrant, and elevated bilirubin and alkaline phosphatase levels is highly suggestive of pancreatic cancer. This clinical scenario, known as Courvoisier's sign, points towards a pancreatic malignancy due to biliary obstruction. Gallstones could cause similar symptoms but would typically not present with a palpable mass. Hepatitis usually does not present with a palpable mass and would have different laboratory findings. Primary biliary cirrhosis typically presents differently with chronic cholestasis without the presence of a palpable mass or a pancreatic lesion.
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