Hospital of the University of Pennsylvania
P.J. Brennan, chief medical officer for the Penn health system, said the hospital's high rates of cuts and tears from medical treatments did not indicate injuries but were an expected part of doing procedures. He said hospital officials also looked into the hospital's high rates of blood clots after a commercial insurer noted them. The officials found that some patients had come into the hospital because they had those clots. Others, he said, probably were caused by the insertion of catheters, which can dislodge clots even when preventative actions are taken. He said some clots were avoidable since the patients hadn't received the complete dose of blood-thinning medicine. He added that the hospital has improved how it handles these cases.