A blood test, or hematological test, is a test that is done on a blood sample to measure the content of certain substances in the blood or to count different types of blood cells. Blood tests may be done to look for signs of disease or pathogens, to test for antibodies or signs of tumors or to evaluate the effectiveness of treatments: https://phuongnamhospital.com/xet-nghiem/da-khoa-phuong-nam-dia-chi-xet-nghiem-o-da-lat-chuan-xac-va-uy-tin/