FDA: CT scan may pose risk for some patients

The Food and Drug Administration is warning doctors and patients that electronic devices such as pacemakers, cardiac defibrillators and insulin pumps can malfunction when people get CT scans. The scans can cause medical devices to shock patients or start sending inaccurate signals, the FDA said in a public health alert. The agency has received six confirmed reports of devices that malfunctioned after a CT scan and another nine reports of suspected problems, according to the FDA. No deaths occurred.