Undergraduate / "volunteering in a prominent local hospital," 150 WORDS COMMON APP ESSAY [12]

This is my short answer for the 150 words or less section on the common app, elaborating on an extracurricular activity. Any comments/edits/suggestions are welcome. Thanks in advance!

For the past two years, I've had the opportunity to volunteer at Hôtel-Dieu Grace Hospital, a prominent local hospital, where I devoted myself to serving those in the healthcare community. In 10th grade, I worked at the coffee bar, where I handled significant amounts of money and prepared refreshments, and this summer I switched to working on the discharge team. Here, our responsibility was to take wheelchair patients from around the hospital to other departments, or to meet their families and friends outside. On the discharge team, I was called to almost every one of the nine floors in the building; this enabled me to experience the diverse aspects of the hospital community. During my time here, I gained a great deal of valuable insight into the health profession by developing relationships with doctors, nurses, and patients. More importantly, this experience has given me a heart for the sick and elderly, and a stronger sense of responsibility.