Cough, Feeling of not being able to get enough air, Rapid heart rate (pulse) Feeling of not being able to get enough air, Pain or discomfort, Palpitations (fluttering in chest), Rapid heart rate (pulse) Palpitations (fluttering in chest), Pounding heart (pulse), Rapid heart rate (pulse), Shortness of breath.
The four main blood types are A, B, O and AB. They differ from each other by which antigens are present on the blood cells. They also have subgroups for each main types. So A has the sub group of AA or AO. Then there is the Rh or Rhesus blood type. Humans are usually +ive or -ive. With a number of antigens for this.
Our blood types are determined by heredity. People belong to either of eight different blood types: A Rh+, A Rh-, B Rh+, B Rh-, AB RH+, AB Rh-, 0 Rh+, or 0 Rh- . The eight blood types have different combinations of certain molecules, antigens, on the surface of the red blood cells. The A and B antigens are sugars and the Rh antigens are proteins. The antigens expressed in the red blood cells determine an individual's blood type. Also the combination of some other molecules floating around in the blood plasma differs between the eight blood types, the so called antibodies.