Which one of the following is INCORRECT about chronic kidney disease?

Chronic kidney disease (CKD) is a progressive and generally irreversible condition characterized by a gradual decline in glomerular filtration rate (GFR) over months or years. As the disease progresses, the kidneys often shrink, which can be detected by imaging techniques showing reduced kidney size.

Sudden kidney failure after severe bleeding or trauma is a characteristic of Acute Kidney Injury (AKI), not chronic kidney disease. Severe bleeding leads to a sudden drop in blood pressure and reduced blood flow to the kidneys, causing acute damage.

Answer: It happens suddenly after severe bleeding.