prerenal
/ˌpriːˈriːnl/Anatomy and Medicine
adjective
1Situated anterior or superior to the kidney or (more usually) to the junction of the vena cava with the renal vein.
2Occurring proximal to, or before reaching, the kidney; specifically designating disorders caused by abnormality of the blood supply to the kidney.
Origin
Late 19th century; earliest use found in The Century Dictionary. From pre- + renal.