Checking Vitals Air Force Master Sgt. Darlena Martens observes a simulated patient’s vital signs during an aeromedical evacuation exercise at Dobbins Air Reserve Base, Ga., Feb. 2, 2017. Martens is a medical technician assigned to the 446th Aeromedical Evacuation Squadron. Air Force photo by Tech Sgt. Peter Dean SHARE: Download: Full Size (0.74 MB) Credit: TSgt. Peter Dean VIRIN: 170205-F-HJ539-0023.JPG Photo Gallery