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    RN HESI Pharmacology Proctored Exam

    The healthcare provider prescribes propylthiouracil (PTU) and Lugol’s solution, a strong iodine solution, for a client with hyperthyroidism. How should the nurse schedule the administration of these medications?

    Explanation & Rationale

    Choice A reason: Administering iodine one hour before PTU is recommended because iodine can help reduce the thyroid hormone levels more effectively when given before PTU. This sequence ensures that the iodine is absorbed and utilized by the thyroid gland before PTU inhibits the synthesis of new thyroid hormones. Choice B reason: Scheduling both medications at bedtime is not appropriate. PTU and iodine solutions should be administered at specific times to maximize their effectiveness. PTU is typically given in divided doses throughout the day, while iodine solutions are often given before meals. Choice C reason: Administering both drugs together with a meal is incorrect. PTU should be taken on an empty stomach to ensure proper absorption, and iodine solutions are usually given before meals. Choice D reason: Giving a parenteral dose once every 24 hours is not applicable for these medications. PTU is administered orally in divided doses, and iodine solutions are also given orally.

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