Fasting before a blood test means that the patient is asked not to eat or drink anything other than water before the blood test. However, not all blood tests require fasting before the test, usually if it does, it is only for a short period of time.

Human blood is divided into many groups and each blood group has its own characteristics, the structure of blood vessels can be broken if the blood group is not compatible with each other. To ensure safety during blood transfusion, it is necessary to follow the basic principles of blood transfusion.

Human blood was first classified into four types in the first decade of the 1900s by Austrian physician Karl Landsteiner. Many studies have suggested that blood type characteristics can also affect a person’s health and personality. The following article will discuss blood type O in more detail.

The Rhesus (Rh) factor is an inherited protein found on the surface of red blood cells. If your blood has this protein, it is considered Rh positive, and if it does not, it is Rh negative.

While most human blood is made up of the same basic components, scientists have discovered that there are many different types of blood. There are eight different blood types, and these are determined by the genes you inherit from your parents.

You may have heard of the four basic blood types: A, AB, B, and O, and the positive or negative variations of these blood types. But did you know that these four types can be divided into many different blood types?

Blood is a special biological product. Blood is also considered a medicine, when needed, it must be used according to the correct indication. Because blood transfusion also has the potential risk of unforeseen complications. Therefore, some of the following principles when transfusing blood must be strictly followed to help ensure the safety and life of the patient.

Blood group AB is one of the rare blood groups, characterized by both A and B antigens on red blood cells and no antibodies in the plasma.

Rh incompatibility occurs when a mother with Rh-negative blood carries a baby with Rh-positive blood, which can lead to hemolysis - a serious condition for the baby if left untreated.

Blood group incompatibility between mother and child is one of the causes of neonatal jaundice. The degree of jaundice in these situations is often quite severe and can cause brain damage, followed by cerebral palsy, a serious sequela if not actively treated.

All pregnant women should be tested for Rh antibodies. This is one of the first and most important tests during pregnancy to determine whether the body carries the Rh protein in the blood.