PTAN stands for Provider Transaction Access Number (medicare reimbursements). Suggest new definition. This definition appears frequently and is found in the following Acronym Finder categories: 1  Military and Government. 2  Science, medicine, engineering, etc.
Adrenaline also makes the blood vessels dilate in order to improve blood flow and oxygen delivery in case the body has to suddenly flee a dangerous situation. The veins in the face, as well as in the stomach lining and throughout the rest of the body, then have more blood than normal flowing through them, and they appear red. More about blushing: A surgery known as endothoracic sympathectomy can potentially eliminate blushing by snipping the small nerves located in the spine that trigger the response.
Tweet. Vomiting bile often presents as a bright yellow to dark green color in the vomitus. While the color may be due to the breakdown of food, the presence of bile should not be ignored as it could be related to serious causes that require immediate medical attention, especially if it is of a sudden onset. The irritation of the stomach lining may lead to vomiting of the bile and other gastric contents. 2  Any gastric surgery that may affect the pyloric sphincter of the stomach may allow bile to enter the stomach during intestinal peristalsis.