Hundreds of national, international and world health awareness days celebrated annually. Calendar includes months, weeks and days for each year of 2024
Doctors review medical history and perform physical examination. Blood tests reveal elevated red blood cells and hemoglobin levels. Bone marrow aspiration or biopsy confirms diagnosis. Gene testing may identify specific mutations
Blood types are classified by ABO system into A, B, AB and O. Type O blood is universal donor, Type AB can receive from any type. Type A contains B antibodies, Type B contains A antibodies. Blood type can be determined through lab tests with blood specimen