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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 obese man arrives at a clinic reporting daytime sleepiness, difficulty falling asleep at night, and snoring. The nurse should recognize the manifestations of what health problem?
- A. Adenoiditis
- B. Chronic tonsillitis
- C. Obstructive sleep apnea
- D. Laryngeal cancer
Correct answer: C
Rationale: The symptoms described, including daytime sleepiness, difficulty falling asleep at night, and snoring, are classic signs of obstructive sleep apnea. This condition is commonly seen in obese individuals due to the relaxation of throat muscles during sleep, leading to airway obstruction. Adenoiditis and chronic tonsillitis are less likely as they don't typically present with the same symptoms mentioned.
3. A client receiving total parenteral nutrition (TPN) through a central line suddenly develops dyspnea, chest pain, and a drop in blood pressure. What should the nurse do first?
- A. Stop the TPN infusion.
- B. Notify the healthcare provider.
- C. Place the client in Trendelenburg position.
- D. Administer oxygen at 2 liters/minute.
Correct answer: C
Rationale: Placing the client in Trendelenburg position should be the initial action as it can help manage a suspected air embolism, a potential complication of TPN administration. This position helps trap air in the apex of the atrium, reducing the risk of air reaching the pulmonary circulation and causing further harm. Once the client is in a safe position, further actions such as stopping the TPN infusion, notifying the healthcare provider, and administering oxygen can be taken as appropriate.
4. A client with type 1 diabetes mellitus is admitted with hyperglycemia. Which laboratory result requires the most immediate intervention?
- A. Serum glucose of 350 mg/dL.
- B. Serum potassium of 2.8 mEq/L.
- C. Serum sodium of 136 mEq/L.
- D. Serum bicarbonate of 20 mEq/L.
Correct answer: B
Rationale: A serum potassium level of 2.8 mEq/L is critically low and can cause cardiac arrhythmias, requiring immediate intervention. Hypokalemia is a life-threatening condition that needs prompt correction to prevent serious complications. High serum glucose levels (choice A) are a concern in diabetes but do not pose an immediate life-threatening risk compared to severe hypokalemia. Serum sodium (choice C) and serum bicarbonate levels (choice D) are within normal ranges and do not require immediate intervention.
5. A client with peptic ulcer disease is prescribed omeprazole (Prilosec). Which instruction should the nurse include in the client's teaching plan?
- A. Take the medication with food.
- B. Take the medication at bedtime.
- C. Take the medication on an empty stomach.
- D. Take the medication as needed for pain relief.
Correct answer: C
Rationale: The correct instruction for a client prescribed omeprazole (Prilosec) is to take the medication on an empty stomach. This is important for optimal absorption and effectiveness of the medication in treating peptic ulcer disease. Choice A ('Take the medication with food') is incorrect because omeprazole should be taken on an empty stomach. Choice B ('Take the medication at bedtime') is incorrect as it does not align with the optimal timing for omeprazole administration. Choice D ('Take the medication as needed for pain relief') is incorrect because omeprazole is not typically used for immediate pain relief but rather for long-term management of peptic ulcer disease.
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