In addition to processing waste from your blood, your kidneys measure out the chemicals your body needs like sodium, phosphorus, and potassium. They are released back to the blood to be returned to the body. In this way your kidneys regulate the right balance of chemicals that are necessary for life.
Renal versus Kidney
"Renal" is a term referring to the kidney. Your doctor may use the word "renal" when discussing your condition.
A kidney stone is a hard mass developed from crystals that separate from the urine. A kidney stone forms in the kidneys but can end up anywhere in your urinary tract. Normally, urine contains chemicals that prevent or inhibit the crystals from forming. When these inhibitors do not work, you may develop stones.
Pyelonephritis is a kidney infection, usually from bacteria that have spread from the bladder.
The cause of IgA nephropathy is abnormal deposits of the immunoglobulin A (IgA) inside the tiny blood vessels (glomeruli) of your kidneys.
Polycystic kidney disease (PKD) is a genetic disorder characterized by the growth of numerous cysts in the kidneys.
Acute kidney failure is the sudden loss of your kidneys' ability to perform their main function.