The Duke team was happy to see former Duke faculty member Dr. Monty Mythen, chair of Anaesthesia at University College London. He is shown here with his daughter Charlotte at the Namche Bazaar High Altitude Lab, altitude 3,440 meters, 11,286 ft. (Charlotte was born at Duke Hospital). The team reached Everest Base Camp (altitude 5,364 meters, 17,598 ft) on April 10, where the observations were made of altitude sickness scores and oxygen saturation. On the way down toward Dingboche one of the other trekking team members developed high altitude cerebral edema (HACE) and had to be evacuated by helicopter. This cut short Dr. Moon’s trek, as he accompanied her to the medical facility in Kathmandu.