A charge nurse is providing an in-service to a group of nurses about hypomagnesemia. Which of the following should the charge nurse include as risk factors for this condition? (Select all that apply.)

A. Osmoreceptors in the pituitary gland regulate the secretion of cortisol in response to changes in plasma osmolality: This is incorrect as the pituitary gland itself does not have osmoreceptors; rather, the hypothalamus contains osmoreceptors.

B. Osmoreceptors in the hypothalamus detect high plasma osmolality and stimulate the release of antidiuretic hormone (ADH), which enhances water reabsorption in the kidneys: This is correct. Osmoreceptors in the hypothalamus sense changes in plasma osmolality and regulate ADH release to maintain water balance.

C. Osmoreceptors in the kidneys monitor blood pressure changes and regulate aldosterone secretion to control sodium reabsorption and water balance: This is not correct because the kidneys primarily use juxtaglomerular cells to sense blood pressure changes and regulate aldosterone, not osmoreceptors.

D. Osmoreceptors in the hypothalamus detect low plasma osmolality and inhibit the release of antidiuretic hormone (ADH), leading to increased urine production: This is partially correct; osmoreceptors do detect low osmolality, but their inhibition of ADH would decrease urine production, not increase it.

A. Report new-onset muscle weakness: Hypokalemia can cause muscle weakness, cramps, and fatigue, which are important symptoms that need to be monitored. Reporting these symptoms promptly is crucial because severe hypokalemia can lead to life-threatening complications, such as respiratory failure or cardiac arrhythmias.

B. Increase consumption of apples and broccoli: While fruits and vegetables like apples and broccoli are healthy, they are not particularly high in potassium. The client should be encouraged to consume potassium-rich foods such as bananas, oranges, potatoes, and spinach to help correct hypokalemia.

C. Avoid salt substitutes: Some salt substitutes contain potassium chloride, which can actually help increase potassium levels. However, this option might be recommended in certain conditions where potassium levels need to be carefully controlled, such as in renal failure, not in hypokalemia management.

D. Report falls, due to high risk of osteoporosis: Hypokalemia does not directly increase the risk of osteoporosis. Falls may occur due to muscle weakness, but this is not specifically related to osteoporosis. Therefore, reporting falls is not the primary concern in hypokalemia.