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In the wake of the deadly earthquake-triggered avalanche on Mount Everest, Ellen Gallant tried to help people.

Gallant, a cardiologist who lives near Park City, was trying to summit the world's highest mountain when the Nepal earthquake struck.

"I was outside, saw this huge blast cloud coming down," she told ABC News. "I ran into the tent, threw myself on the floor. When the vibration stopped, I went out and radioed over to the medical tent."

Far below, the quake claimed the lives of nearly 1,400 people. An ensuing avalanche on Everest killed 18 people and injured several others.

Through the night, she and an Indian doctor tried to help the injured in "rudimentary" conditions. But she told ABC that she was unable to save a 25-year-old Sherpa, who died before her eyes.

"His blood pressure had fallen. There was nothing we could do," she told the news network. "… Around 6 a.m., we heard helicopters and we knew we would make it out of the woods. We were able to send [eight survivors] out."

Everyone in Gallant's expedition team is all right, according to the compnay Himalayan Experience.

Arlo Gagestein, Gallant's personal trainer who lives in Ogden, said Saturday that he is unsure where the disaster leaves their expedition. Weather permitting, her team was expecting to summit Everest around the first week of May.

This is the second time in two years Gallant has tended to people hurt in an Everest avalanche. In April 2014, an avalanche that killed 16 people also left several others injured, and she and another doctor treated them in the base camp's medical tent.

Gallant prepared for more than a decade to climb the Himalayan mountain. She summited peaks on at least four continents in the meantime, including the highest mountain in Antarctica.

To fully commit to attempting the climb, she quit her job as a physician. There was no reconciling the time commitment and her work schedule, she said in a 2014 interview with Alan Arnette.

Twitter: @MikeyPanda