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.
Just keep this in mind: Noticing blood on your toilet paper or in the toilet after you go could be caused by a variety of different thingsâand heading directly to a medical professional is always the best way to find out what's what. That being said, Sonpal says some causes are more likely (and less scary) than others for blood in stool. The color of the blood can give you a clue as to where the underlying issue might be. Darker, almost blackish blood typically comes from the upper GI tract (your stomach or esophagus), which could mean you have an ulcer.