Several organs can be transplanted after a person's death, including the heart, kidneys, liver, lungs, pancreas, and intestines. These organs are viable for transplant for a limited time after the donor has passed away. For example, the heart can remain viable for up to four to six hours after being outside the body.
While organs are typically removed after death, recent advancements in medicine have allowed doctors to restart blood circulation in donated organs using a pump, improving the chances of successful transplantation.