It is estimated that at least 44,000 people, and possibly as many as 98,000 people, die each year due to preventable medical errors.  What can you do, as a patient, to minimize your risks? Beware the Central Venous Catheter These are used to deliver medication and sample blood.  They also pose a significant risk of infection.  If your doctor orders the use of one, ask your physician on a daily basis when it can be removed.  Also,