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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. The mother of a 9-month-old who was diagnosed with respiratory syncytial virus (RSV) yesterday calls the clinic to inquire if it will be all right to take her infant to the first birthday party of a friend's child the following day. What response should the nurse provide this mother?
- A. The child can be around other children but should wear a mask at all times.
- B. The child will no longer be contagious, no need to take any further precautions.
- C. Make sure there are no children under the age of 6 months around the infected child.
- D. Do not expose other children. RSV is very contagious even without direct oral contact.
Correct answer: D
Rationale: The correct response is to advise the mother not to expose other children to the infected child. RSV is highly contagious, and transmission can occur even without direct oral contact. It is crucial to prevent the spread of the virus to protect other children from getting infected.
4. A client with hypothyroidism is prescribed levothyroxine (Synthroid). Which instruction should the nurse provide?
- A. Take the medication with a meal.
- B. Take the medication at bedtime.
- C. Take the medication on an empty stomach.
- D. Take the medication with an antacid.
Correct answer: C
Rationale: The correct instruction for a client prescribed levothyroxine (Synthroid) is to take the medication on an empty stomach. This ensures optimal absorption of levothyroxine. Taking it with a meal can interfere with absorption due to food interactions. Taking it at bedtime may lead to inconsistent absorption as it should be taken at the same time every day in the morning. Taking it with an antacid can reduce the absorption of levothyroxine, making it less effective.
5. A 45-year-old woman presents with fatigue, pruritus, and jaundice. Laboratory tests reveal elevated bilirubin and alkaline phosphatase levels. Imaging shows a normal common bile duct but dilated intrahepatic bile ducts. What is the most likely diagnosis?
- A. Primary biliary cirrhosis
- B. Primary sclerosing cholangitis
- C. Gallstones
- D. Pancreatic cancer
Correct answer: A
Rationale: Based on the symptoms of fatigue, pruritus, and jaundice, along with elevated bilirubin and alkaline phosphatase levels, and imaging findings of a normal common bile duct but dilated intrahepatic bile ducts, the most likely diagnosis is primary biliary cirrhosis. Primary sclerosing cholangitis presents with different imaging findings, often showing strictures and beading of the bile ducts. Gallstones typically cause obstruction in the biliary system, leading to different symptoms and imaging findings. Pancreatic cancer would present with different clinical features and imaging characteristics.
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