For staging of head and neck cancer, which letter indicates whether cancer has spread to another part of the body?

A. "It is caused by the lack of production of insulin by the pancreas.": This is incorrect. The lack of insulin production causes diabetes mellitus, not Addison’s disease. Addison’s disease results from insufficient production of adrenal hormones, particularly aldosterone and cortisol.
B. "It is caused by the overproduction of parathormone by the parathyroid gland.": This is incorrect. Parathormone is produced by the parathyroid glands and regulates calcium balance, but overproduction of parathormone leads to conditions such as hyperparathyroidism, not Addison’s disease.
C. "It is caused by the lack of production of aldosterone by the adrenal gland.": This is correct. Addison’s disease, also known as primary adrenal insufficiency, is caused by the inability of the adrenal glands to produce sufficient aldosterone and cortisol, two critical hormones. Aldosterone helps regulate sodium and potassium balance, and cortisol helps the body respond to stress.
D. "It is caused by the overproduction of growth hormone by the pituitary gland.": This is incorrect. Overproduction of growth hormone causes acromegaly or gigantism, not Addison’s disease. Addison’s disease results from adrenal insufficiency, not pituitary gland dysfunction.

A. While documenting the amount of drainage is important, it is not the most urgent action when clear drainage is observed after a transsphenoidal hypophysectomy.
B. Notifying the provider is important but should not be the first step. The nurse should first assess the nature of the drainage, as it could indicate a serious complication, such as cerebrospinal fluid (CSF) leakage.
C. A culture may be necessary if infection is suspected, but the priority action is to assess whether the drainage is CSF.
D. Checking the drainage for glucose is the most appropriate initial action. Clear drainage from the nasal packing could indicate a CSF leak, which is a complication that can occur after transsphenoidal surgery. CSF contains glucose, so testing for glucose in the drainage will help determine if it is CSF. If glucose is detected, the nurse should immediately notify the provider, as CSF leakage requires prompt intervention.