Biometric Telehealth: An Innovative Solution for First Responders with PTSD Paramedics, EMTs, police officers, firefighters, and rescue workers are the first to respond to emergencies. The scene of critical incidents often involves exposure to life- threatening situations, frightening events, and stressful experiences. These experiences can lead to post-traumatic stress disorder (PTSD) among first responders. The most common symptoms of PTSD are nightmares and flashbacks of distressing events...