ATI LPN
ATI The Medical Surgical Endocrine Test Questions
Question 1 of 5
The adrenal glands consist of _________.
Correct Answer: B
Rationale: The adrenal glands have an inner medulla and outer cortex with distinct functions.
Question 2 of 5
The thymus increases in size with aging.
Correct Answer: B
Rationale: The thymus shrinks with age, reducing immune function.
Question 3 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 4 of 5
Hormone release stops when the stimulus that triggered it - like thirst or high blood sugar is satisfied or corrected. This is called:
Correct Answer: B
Rationale: Negative feedback systems halt hormone release when the initiating stimulus is resolved, maintaining homeostasis, e.g., insulin secretion stops when blood sugar normalizes.
Question 5 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.