Gysel has been in the medical field for over 25 years. She started off as an EMT in 1995 and soon after became a Paramedic in 1998 where she worked in the 911 system in New York City, one of the busiest centers in the country, for twelve years. Her expertise and ability to think clearly in stressful situations were a perfect fit for this work. In 2006, she became interested in organ donation and she joined the team at Live On NY, formerly known as New York Organ Donor Network. She worked full time while still maintaining her Paramedic license and continuing to work in the 911 system. Gysel started out in a pilot program at Live On NY as one of the first Paramedics to be hired as a Donor Evaluation Coordinator, a position formerly reserved only for RNs. During her tenure at Live On NY, she worked her way up to Senior Transplant Coordinator, a position and role that included being responsible for precepting, mentoring, referring and assisting with donor management. Gysel specialized in Lung Management on donors to improve lung transplantation and served as a consultant for other coordinators who needed assistance with unstable donors.
During her tenure at Live On NY, she worked her way up to Senior Transplant Coordinator, a position and role that included being responsible for precepting, mentoring, referring and assisting with donor management. Gysel specialized in Lung Management on donors to improve lung transplantation and served as a consultant for other coordinators who needed assistance with unstable donors

During her twelve years at Live On NY, Gysel also worked in the role of Organ Allocation Coordinator as well as serving as Organ Allocation Supervisor for a year. In 2015, Gysel became an RN and transitioned into the role of Emergency Room RN, serving her community while maintaining per diem status for Live On NY. In 2016 Gysel became interested in assisting other OPOs in need of coordinators and began traveling as a Transplant Coordinator, mainly assisting LifeGift in Houston, Texas. In 2018 Gysel decided to take on a full-time role that would keep her close to home and her growing family.

Some other accreditation Gysel holds is being published in Progress in Transplantation in 2013: Hemoglobin A1c Testing is Associated with Improved Pancreas Utilization for Transplant. Gysel has also served in the capacity of BCLS/ACLS/PALS instructor over the course of her medical career throughout all of NY. Lastly, Gysel was working 911 as a paramedic the day of 9/11, an indelible mark on her medical career, assisting several individuals to safety and providing medical support as the 2nd tower crumbled within just a few yards.