What it’s like to be a doctor in training in the middle of a pandemic Texas Tribune Updated: Tags: , our daily newsletter that keeps readers up to speed on the most essential Texas news. Brooke Wagen said her first day as an internal medicine resident at Dell Seton Medical Center’s intensive care unit during Texas’ COVID-19 summer surge was like being hit by a train. For the first four hours of her 28-hour shift, she learned how to place orders with the hospital’s computer system. Though many details have since blurred together, the 44-year-old remembers a coronavirus patient who came in around 10 p.m. and needed an arterial line, a thin tube that makes it easier to check blood pressure and oxygen levels.