Nokea
What does the nurse understand will be released to maintain a relatively constant level of blood sugar in a client with normal function of the pancreas?
- A. Cortisol
- B. Glucagon
- C. Insulin
- D. Somatostatin
Correct Answer: D
Rationale: Somatostatin, secreted by pancreatic delta cells, inhibits the release of insulin and glucagon, helping maintain stable blood sugar levels. Cortisol, glucagon, and insulin have more direct roles in raising or lowering blood sugar.
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A group of students is reviewing for a test on hormones. The students demonstrate understanding of the material when they state which of the following as being secreted by the kidneys?
- A. Atrial natriuretic peptide
- B. Estrogen
- C. Renin
- D. Gastrin
Correct Answer: C
Rationale: The kidneys release renin and erythropoietin. Atrial natriuretic peptide is secreted by the atria of the heart, estrogen by the ovaries and placenta during pregnancy, and gastrin by the stomach to increase hydrochloric acid production.
An instructor is preparing a teaching plan for a class on the various pituitary hormones. Which hormone is released by the posterior pituitary gland?
- A. Somatotropin
- B. Prolactin
- C. Oxytocin
- D. Adrenocorticotropic hormone
Correct Answer: C
Rationale: The posterior pituitary gland releases oxytocin and antidiuretic hormone. Somatotropin, prolactin, and adrenocorticotropic hormone are secreted by the anterior pituitary gland.
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?
- A. Thyroid gland
- B. Parathyroid gland
- C. Thymus gland
- D. Adrenal gland
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.
The nurse is reviewing the plan of care for a client with a disorder of the thyroid gland. Which diagnostic test will the nurse expect the physician to order to evaluate thyroid hormones?
- A. Magnetic resonance imaging
- B. Radioimmunoassay
- C. Computed tomography (CT)
- D. Cortisol level determination
Correct Answer: B
Rationale: A radioimmunoassay evaluates thyroid hormone function, specifically T3 and T4 levels. A CT or magnetic resonance imaging scan is used to detect a suspected tumor and to determine organ size and placement. Cortisol levels are used to assess adrenal function, not thyroid function.
A client is admitted to the hospital and will be undergoing tests to determine if an abdominal mass is present. What should the nurse be sure to document when asking about allergies?
- A. If the client is allergic to beef
- B. If the client is allergic to pork
- C. If the client is allergic to shellfish
- D. If the client is allergic to grapefruit
Correct Answer: C
Rationale: The nurse must document allergies to iodine or shellfish, as these can react with contrast dyes used in imaging tests for abdominal masses. Allergies to beef, pork, or grapefruit are not relevant to contrast dye safety.