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When having RH blood type, it can complicate pregnancy, but it is rare. It is normally when the fetus's blood travels through your canal. RH blood types are compatible with other RH blood types.
O- is compatible with donating to all blood types. AB+ is compatible with receiving from all blood types. All other blood types are on their own with compatibility.
You are compatible with your own blood type and type O, unless you are type AB, then you are compatible with A, B, AB and O. It's important to have compatible blood types especially during pregnancy.
When the body encounters types of blood it is not familiar with, it makes antibodies to attack it. That's why O- is the universal donor. O means it has neither A or B components, and the negative means it does not have specific receptor proteins on it. That's also why someone AB+ can have any type of blood, because the body is used to A components, B components, and receptor proteins.
The blood type that is compatible with A negative blood are -A and AB-. O+ is compatible, but should only be used in life-threatening emergency. The same should be take in effect for A+
type o is compatible with all blood types
all blood types made compatible with each other
O- is compatible with any blood type (giving to that type) AB+ can receive any blood. Other blood types are only compatible with themselves and not each other.
Type O+ blood is compatible with AB, A+, B+, and O+ blood types. That is, if your blood type is O positive, you can receive AB, A positive, B positive, and O positive blood types.
Yes, two blood types that are the same are compatible for donation. Either can give or receive blood from the other.
Type O is compatible with any other types (in that it can be donated to anyone). Type A is compatible ONLY with Type A and Type AB. Type B is compatible with itself and Type AB. Type AB is compatible with any of the others (it can receive from any of the other types).
I believe type O blood is the one blood type that can be matched to any of the other blood types. There is one type of blood, though, that is not compatible with type O blood. However, that is very rare.