Jansen, who is on blood thinners until at least Monday, threw a 25-pitch bullpen session Friday, and he plans to play catch Saturday.
While being stretched out before last Tuesday's game, Jansen said he felt a similar irregular heartbeat to what happened last year and he immediately called for the paramedics. After an overnight stay in a Colorado hospital Tuesday, Jansen was released during Wednesday's game and he had tests again Thursday.
Having spent a month on the disabled list last year with an irregular heartbeat, Jansen said this most recent episode wasn't scary like the first time it happened. Although he said it is frustrating, he is willing to accept any prognosis from the doctors.
"It's my life, I can't play around with that," he said, adding he feels fine. "It's going to be frustrating because I really want to help this organization and help my teammates. But what can I do? This is stuff you can't control. It's just nature."
Jansen said the possibility of surgery is out there for down the road, but he's awaiting word from the doctors before rushing to any judgment. He drastically changed his diet after going through similar problems last year, and he cut out caffeine, soda and alcohol completely.
"You really want to be out there to help your teammates because we all know what we want to accomplish and what we want to do for this city," Jansen said. "It's frustrating. Hopefully my health gets better and I have a long career."
If the news comes back positive from Tuesday's appointment and he is able to come back at the end of the week, manager Don Mattingly plans to reinsert Jansen back into the closer role immediately. Until then, he said he will play matchups and go with either Brandon League or Ronald Belisario.