What is a common cause of altered potassium levels in older adults?

Altered potassium levels in older adults are frequently linked to medication changes. Many older adults take multiple medications for various chronic conditions, which can have effects on renal function and electrolyte balance, including potassium levels. Certain medications, such as diuretics, can lead to increased potassium excretion, while others, like ACE inhibitors, may cause potassium retention. As older adults often experience a decline in renal function, they become more sensitive to these changes, making it critical to monitor their potassium levels closely in relation to any medication adjustments.

Increased physical activity typically does not have a significant direct impact on potassium levels in older adults, and while decreased metabolism might influence overall homeostasis, it is not a primary cause of altered potassium levels. Increased water intake generally acts to dilute electrolytes rather than directly causing significant changes in potassium levels. Therefore, medication changes stand out as the most relevant factor influencing potassium levels in this population.