What electrolyte imbalance is commonly seen in patients with chronic kidney disease?

In patients with chronic kidney disease (CKD), the kidneys are less capable of excreting potassium, leading to an accumulation of this electrolyte in the bloodstream. This can result in a condition known as hyperkalemia, which is characterized by elevated levels of potassium. Because potassium plays a crucial role in maintaining normal muscle and nerve function, elevated levels can have serious consequences, including life-threatening cardiac arrhythmias.

As chronic kidney disease progresses, the body's ability to regulate electrolytes diminishes, making it increasingly common for patients to experience high potassium levels. Addressing hyperkalemia is an essential part of managing these patients' overall health and preventing complications.

Other electrolyte imbalances also occur in CKD, but the predominant and most concerning issue is the retention of potassium, making high potassium the expected finding in these patients.