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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 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.
3. A client is being discharged with a new prescription for enoxaparin (Lovenox). Which instruction should the nurse include?
- A. Administer the injection in your thigh.
- B. Do not expel the air bubble from the syringe before injection.
- C. Massage the injection site after administration.
- D. Alternate the injection site between the arms.
Correct answer: B
Rationale: The correct instruction for a client with a prescription for enoxaparin (Lovenox) is not to expel the air bubble from the syringe before injection. This ensures the full dose is delivered without affecting the medication's efficacy. Expelling the air bubble may lead to a loss of medication, resulting in suboptimal treatment. Therefore, it is crucial for the client to follow this instruction to receive the intended therapeutic effect of enoxaparin.
4. A client with a severe head injury is admitted to the intensive care unit (ICU). Which finding should the nurse report to the healthcare provider immediately?
- A. Urine output of 100 mL/hour.
- B. Intracranial pressure (ICP) of 20 mm Hg.
- C. Respiratory rate of 12 breaths/minute.
- D. Mean arterial pressure (MAP) of 70 mm Hg.
Correct answer: B
Rationale: An Intracranial Pressure (ICP) of 20 mm Hg is at the upper limit of normal and may indicate increased intracranial pressure, which is a critical finding in a client with a severe head injury. Elevated ICP can lead to further brain damage and must be addressed promptly to prevent complications such as herniation. Monitoring and managing ICP are crucial in the care of patients with head injuries in the ICU.
5. A client's health history is suggestive of inflammatory bowel disease. Which of the following would suggest Crohn disease, rather than ulcerative colitis, as the cause of the client's signs and symptoms?
- A. A pattern of distinct exacerbations and remissions
- B. Severe diarrhea
- C. An absence of blood in stool
- D. Involvement of the rectal mucosa
Correct answer: C
Rationale: In the context of inflammatory bowel disease, the absence of blood in stool is more indicative of Crohn disease. Crohn disease typically presents with non-bloody stools, while ulcerative colitis often involves bloody stools due to continuous mucosal inflammation confined to the colon and rectum.
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