Blood Test: The Doctor’s Diagnostic ToolTo most of us, blood test is as inspiring as a visit to the dentist. But relax, lets find out its uses by covering some frequently asked questions on the topic. 1. What is a blood test? Blood test is the test that is carried out to determine any kind of germs present in the blood that can cause any illness. Blood test is called a diagnostic tool. In a blood test, the blood sample is taken in the laboratory to do the test. The doctors view the blood samples minutely with the help of a microscope. This helps them to find out if there are any infectious organisms. Based on the results of the blood test, the doctors carry out the treatment. 2. How is a blood test carried out? To conduct the blood test, blood samples are either taken form veins or from arteries. Blood sample doesnt mean that you have to take out the blood in the tube. The blood test determines how much blood is sufficient to carry out the test. At times, just a few drops of blood is sufficient as in the case of blood sugar in diabetes. In such a case, you just need to make a small prick to take out the blood. Few blood tests are taken from vein. In such a case, the blood is taken it from the elbow. A cord is tied around the upper arm to view the view properly. The blood is taken out from a disposable syringe. Disposable syringe or needle is used to avoid any infectious disease. These syringes once used shouldnt be reused. At times, the blood can also be taken out form the artery. The blood is extracted from the artery that is close to the skin. It might is more painful as compared to the vein wall. 3. What do doctors examine form these tests? Human blood is made up of two main components: cells and plasma. There are three different kinds of cells: platelets, red blood cell, and white blood cell. To gather information about these cells, the doctors prescribe different blood tests. Red Blood Cells: Blood tests are often conducted to find out the hemoglobin level that is present in the blood. With the help of hemoglobin, there is a presence of oxygen in your body. At times, hemoglobin tests are conducted when you get anemic. Different illness for which blood tests are conducted for the following: * RBC blood test * Pregnancy test * Drug blood test * Cancer test * Other test The blood test is thus a valuable diagnostic tool that helps to detect any illness you may be suffering from. It also helps to detect at which stage the disease is. Thus, Blood test is one of the most common and highly recommended test by the doctors because it detects infection and illness . |