There are many types and causes of head injury, but, by far, the most common are concussions related to motor vehicle accidents and contact sports. Concussion comes from the Latin âConcutereâ, which means to shake violently.
Noun. 1. pyelonephritis-inflammation of the kidney and its pelvis caused by bacterial infection. urinary tract infection-any infection of any of the organs of the urinary tract. acute pyelonephritis-pyelonephritis resulting from the spread of a bladder infection.
You selected: Recurrent urinary tract infections. Correct Explanation: Chronic pyelonephritis is most commonly the result of recurrent urinary tract infections. Chronic pyelonephritis can lead to chronic renal failure. Single cases of acute pyelonephritis rarely cause chronic pyelonephritis.ou selected: Recurrent urinary tract infections. Correct Explanation: Chronic pyelonephritis is most commonly the result of recurrent urinary tract infections. Chronic pyelonephritis can lead to chronic renal failure. Single cases of acute pyelonephritis rarely cause chronic pyelonephritis.