ATI LPN
ATI The Medical Surgical Endocrine Test Questions
Question 1 of 5
Planning care for Mrs. Thomas includes teaching about living with hypothyroidism. Which of the following is appropriate for the nurse to teach?
Correct Answer: C
Rationale: Aspirin can displace thyroxine from binding proteins, increasing free levels; Tylenol is safer for symptom relief.
Question 2 of 5
A 61-year-old woman with hyperthyroidism is treated with propylthiouracil. The drug reduces the synthesis of thyroid hormones because it inhibits oxidation of
Correct Answer: D
Rationale: For iodide (I-) to be 'organified' (incorporated into thyroid hormone), it must be oxidized to I2, which is accomplished by a peroxidase enzyme in the thyroid follicular cell membrane. Propylthiouracil inhibits peroxidase and, therefore, halts the synthesis of thyroid hormones.
Question 3 of 5
Tropic hormones
Correct Answer: C
Rationale: Tropic hormones (e.g., TSH, ACTH) regulate other endocrine glands' secretions.
Question 4 of 5
Which hormones use second-messenger systems?
Correct Answer: B
Rationale: Catecholamines (e.g., epinephrine) use second messengers like cAMP.
Question 5 of 5
Which of the following is not shared by both lipophilic and hydrophilic hormones?
Correct Answer: D
Rationale: Only hydrophilic hormones use second messengers; both types use plasma proteins.