ATI LPN
Timby's Introductory Medical-Surgical Nursing Thirteenth, North American Edition
Chapter 49 : Introduction to the Endocrine System Questions
Question 1 of 5
A client has a decreased level of thyroid hormone being excreted. What will the feedback loop do to maintain the level of thyroid hormone required to remain homeostatic stability?
Correct Answer: A
Rationale: Most hormones, including thyroid hormones, are regulated by negative feedback, where a decrease in hormone levels stimulates the releasing gland (e.g., the pituitary) to secrete more thyroid-stimulating hormone to restore homeostasis.
Question 2 of 5
The nurse is attempting to locate the thyroid gland of a client in order to determine if it is enlarged. Where should the nurse palpate the thyroid gland?
Correct Answer: C
Rationale: The thyroid gland is located in the lower neck anterior to the trachea, divided into two lateral lobes joined by the isthmus. Palpation in this area helps assess for enlargement.
Question 3 of 5
The nurse is reviewing a client's laboratory studies and determines that the client has an elevated calcium level. What does the nurse know will occur as a result of the rise in the serum calcium level?
Correct Answer: D
Rationale: A rise in serum calcium stimulates the thyroid gland to release calcitonin, which inhibits calcium release from bones to lower blood calcium levels and maintain homeostasis.
Question 4 of 5
A client has a dysfunction in one of his glands that is causing a decrease in the level of calcium in the blood. The nurse knows which gland should be evaluated for dysfunction?
Correct Answer: B
Rationale: The parathyroid glands secrete parathormone, which increases blood calcium levels when serum calcium decreases. The thyroid, thymus, and adrenal glands do not primarily regulate calcium levels.
Question 5 of 5
The nurse is caring for a client with an immunodeficiency disorder. Lab results show that the client does not have an adequate number of T lymphocytes needed to improve immune function. Which gland should be investigated for dysfunction?
Correct Answer: A
Rationale: The thymus gland secretes thymosin and thymopoietin, which are essential for T lymphocyte development, critical for immune function. The parathyroid, thyroid, and adrenal glands do not directly influence T lymphocyte production.