In most instances, Medicare pays 80% of the approved amount of doctor bills; you or your medigap plan pay the remaining 20%, if your doctor accepts assignment of that amount as the full amount of your bill. Most doctors who treat Medicare patients will accept assignment.
An Ambu bag is a trademarked brand of hand-held, self-inflating resuscitators used by medical personnel to provide an emergency air supply to patients. It was developed in 1956.... Star Gazing
Once the tube is in, it is secured, and it can be attached to a mechanical ventilator, anesthesia machine, or bag valve mask, also known as an ambu bag. An ambu bag can be manually manipulated to help the patient breathe. When a tube is threaded through the nose into the airway, it is called nasotracheal intubation. In both cases, a doctor carefully listens to the patient's breath sounds to ensure that the tube is in the trachea, and to make sure that air is being supplied to both lungs.