TCAR Education Programs, Stephen Von Weller RAAS See Renin-angiotensin-aldosterone-system... R Jun 3, 2026
TCAR Education Programs, Stephen Von Weller Radiant energy Energy produced by electromagnetic radiation. In trauma care, most radiant energy burns are the result of solar exposure.... R Jun 3, 2026
TCAR Education Programs, Stephen Von Weller Radiography A imaging method that uses gamma rays or x-rays to view the inside of an opaque object. PRONUNCIATION: ra-di-OG-raphy.... R Jun 3, 2026
TCAR Education Programs, Stephen Von Weller Radiolucent Transparent to X-rays. Radiolucent substances appear black on a radiograph. PRONUNCIATION: ra-di-o-LU-cent.... R Jun 3, 2026
TCAR Education Programs, Stephen Von Weller Radiopaque Radiopaque structures impede penetration by x-rays and, therefore, appear white on radiographic images. Some structures partially absorb radiation and are represented in varying degrees of radiopacity... R Jun 3, 2026
TCAR Education Programs, Stephen Von Weller Reactive oxygen species Highly reactive chemicals formed from oxygen, including hydrogen peroxide (H2O2), superoxide (O2-), and hydroxyl radicals (bleach) (OH). These substances cause oxidant injury to cells. Also known as f... R Jun 3, 2026
TCAR Education Programs, Stephen Von Weller Rebound tenderness Pain when pressure is removed from the abdomen; also called Blumber's sign.... R Jun 3, 2026
TCAR Education Programs, Stephen Von Weller Recidivism Relapsing to a previous condition or mode of behavior. In the context of trauma care, this term is used to refer to individuals who repeatedly sustain traumatic injuries; often those who engage in hig... R Jun 3, 2026
TCAR Education Programs, Stephen Von Weller Refractory A disease or condition that does not respond to treatment. PRONUNCIATION: reh-FRAK-tor-ee.... R Jun 3, 2026
