Final answer:
In Chronic Kidney Disease (CKD), potassium levels may rise, leading to hyperkalemia, because the kidneys lose the ability to excrete excess potassium efficiently.
Step-by-step explanation:
In CKD, which stands for Chronic Kidney Disease, the kidneys are compromised and their function is greatly reduced. As a result, there can be an accumulation of various electrolytes in the bloodstream that the kidneys would normally help to excrete. When it comes to the specific electrolytes listed, the correct answer to the question is B) Potassium. In CKD, potassium may rise because the kidneys can no longer excrete it efficiently, leading to a condition known as hyperkalemia. This condition is particularly dangerous because elevated potassium levels can impair the function of skeletal muscles, the nervous system, and most critically, the heart. Hyperkalemia can result in cardiac arrhythmias and is a potentially life-threatening emergency.