American author Roger Kahn once wrote, "Boxing is smoky halls and kidneys battered until they bleed." Horses don’t typically engage in behaviors that batter each other’s kidneys; however, there are many causes of both acute and chronic kidney damage worth "boxing around" when faced with a sick horse.

"Acute kidney injury usually develops in horses as a complication of another disease process, or as a side effect from medications, or exposure to toxins (see sidebar at left)," relayed Hal Schott II, DVM, PhD, Dipl. ACVIM, professor of equine medicine at Michigan State Universit