Which electrolyte imbalance is commonly associated with chronic kidney disease?

In chronic kidney disease (CKD), the kidneys are unable to effectively filter waste products and maintain the balance of electrolytes. One of the critical consequences of this impaired kidney function is the accumulation of potassium in the bloodstream, leading to hyperkalemia. This occurs because the kidneys are primarily responsible for excreting potassium, and as their function declines, the ability to regulate potassium levels diminishes.

Hyperkalemia is particularly concerning as it can lead to serious cardiac complications, including arrhythmias. Patients with CKD are hence closely monitored for potassium levels, and dietary restrictions or medications may be employed to manage this imbalance.

The other electrolyte imbalances mentioned can also occur in CKD, but hyperkalemia is one of the most common and clinically significant ones, making it a hallmark of the condition.