ATI LPN
Medical Surgical ATI Proctored Exam
1. A 55-year-old woman presents with fatigue, pruritus, and jaundice. Laboratory tests reveal elevated bilirubin and alkaline phosphatase levels. Imaging shows dilated intrahepatic bile ducts and a normal common bile duct. What is the most likely diagnosis?
- A. Primary biliary cirrhosis
- B. Primary sclerosing cholangitis
- C. Gallstones
- D. Pancreatic cancer
Correct answer: A
Rationale: The presentation of fatigue, pruritus, and jaundice in a 55-year-old woman, along with elevated bilirubin and alkaline phosphatase levels, and imaging findings of dilated intrahepatic bile ducts and a normal common bile duct, are characteristic of primary biliary cirrhosis. Primary biliary cirrhosis is an autoimmune liver disease that typically affects middle-aged women, leading to progressive destruction of the intrahepatic bile ducts.
2. Which of the following statements is true about ischemic colitis?
- A. Typically requires colonic resection
- B. Affects the watershed areas of the colon, namely, the splenic flexure, right colon, and rectum
- C. Is only seen in the elderly
- D. Requires colonoscopic intervention
Correct answer: B
Rationale: Ischemic colitis most often results from low-flow states associated with hypotension or poor perfusion. As a result, the vascular watershed areas of the colon, including the splenic flexure, right colon, and rectum, are at highest risk of ischemic injury. Therefore, option B is correct as it accurately identifies the areas commonly affected by ischemic colitis.
3. A client with hepatic encephalopathy is being treated with lactulose. What is an expected outcome of this treatment?
- A. Reduction in blood ammonia levels
- B. Improvement in liver enzyme levels
- C. Decrease in bilirubin levels
- D. Increase in urine output
Correct answer: A
Rationale: Lactulose is used to treat hepatic encephalopathy by reducing blood ammonia levels through promoting its excretion via the intestines. Elevated ammonia levels contribute to the development of encephalopathy symptoms, so by lowering them, the client's neurological status can improve.
4. Why is a low-protein diet recommended for a client with hepatic encephalopathy?
- A. Hyperglycemia
- B. Hypoglycemia
- C. Increased ammonia levels
- D. Electrolyte imbalance
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 with bipolar disorder is prescribed valproic acid. What is an important side effect for the nurse to monitor?
- A. Hypertension
- B. Liver toxicity
- C. Hyperglycemia
- D. Bradycardia
Correct answer: B
Rationale: The correct answer is B: Liver toxicity. Valproic acid is known to potentially cause liver toxicity. Monitoring liver function tests regularly in patients taking valproic acid is crucial to detect any signs of liver damage early and prevent serious complications.
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