All persons with abnormal findings will ultimately need a colonoscopy.

CNN: Are colonoscopies really necessary for people over 50?

There is very high certainty from well-designed trials that colon cancer screening, combined with effective follow-up and treatment of abnormal findings, reduces risk of colon cancer death by at least 35 percent and risk of getting colon cancer by 20 percent.

CNN: Are colonoscopies really necessary for people over 50?

The donor advocate is supposed to take into account only the donor's concerns -- for example, in Paul's case, the abnormal EKG findings -- and not the concerns of the recipient, since sometimes there can be a conflict of interest between the two.

CNN: Organ donor's surgery death sparks questions