LSU Physician Champions - Dr. Daniel Raines and Dr. Kellen Jex
Evaluation of Flank Pain / CVA Tenderness
With the patient sitting upright, and their back exposed, locate the area where the most inferior rib connects with the spine (the costo-vertebral angle).
Place your left hand flat over this area. Make your right hand into a fist, and gently strike your left hand with the pinky side of your hand,
paying attention for tenderness.