You cannot really prevent people from helping others who are in a medical emergency. These people rendering emergency care to a person needing it the most are acting in good faith. As such, all 50 states in the U.S. have passed a legislation of some form to grant these noble individuals immunity from medical malpractice. These legislatures are called Good Samaritan Statutes.
In Wisconsin, the Good Samaritan law covers those who provided emergency care at the scene of the emergency in good faith. The concept behind the Good Samaritan Law is to remove a barrier that might keep people from rendering emergency medical services until a professional medical help is available. However, Wisconsin’s Good Samaritan Law does not cover medical professionals, medical aides, and other health care staff who are providing their emergency medical services for compensation.