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Rh factor is a protein that is found in the blood of about 85% of the population. Those who have the factor are Rh positive, while those who don't, are Rh negative.

A person who is Rh negative can safely donate blood to persons with or without the protein. A person who is Rh positive can only donate to those who are Rh positive.

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Q: What is Rh positive and Rh negative mean?
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Related questions

Who are more prone to HIV Rh negative or Rh positive?

RH negative


Rh positive mother a positive baby?

If a person has the Rh factor, then they are positive. If they don't have the Rh factor, they are negative. The Rh factor is dominant, so a mother with it would have an Rh positive baby even if the father is negative for the Rh factor.


Mother is o positive and father is o positive Does this mean baby will be o positive?

No. There's a small chance the baby will be O negative--if both parents have an Rh negative (recessive) allele, and the baby inherits this allele from both parents, the baby would be Rh negative. But if the baby inherits the Rh positive allele from either parent, the baby will be Rh positive.


Can a negative donate blood to A positive?

No, an O Positive person cannot donate to an A Negative person because the person who is Negative, or Rh Negative, will react to the Positive (Rh Positive) blood. Negative can only get Negative, Positive can get Positive or Negative.


Can a A positive blood type mother give birth to Rh negative daughter?

Can a child with RH neg blood come from parents that are A positive and A negative


What does the presence of the Rh antigen mean?

Rh antigen, which is also called D antigen, indicates if the blood type is positive or negative. The presence of this antigen indicates the patient is Rh positive, the absence of this antigen reflects a blood type of Rh Negative. For example, if a person is O Positive, the Rh antigen is present.


Can parents have negative and positive Rh children?

CAN children hae positive and negative RH factor blood types


What is Rh sensitization?

A woman with a negative blood type (Rh negative) who has produced antibodies against her fetus with a positive blood type (Rh positive)


Why no reaction to blood transfusion first time to Rh negative or Rh positive blood?

because both rh positive ann rh negative the anti boby is less


What blood group is given to someone who is RH negative blood group A?

You would give them A Rh Negative blood or you could also give them O Rh Negative as well. Group O is the universal donor so it can be given to anyone. If the patient is Rh Negative, they can only receive Rh Negative blood. If the patient was Rh positive, they can receive Rh positive or Rh negative.


Is it more common to be Rh- or Rh plus?

Rh positive is more common than Rh negative. Approximately 85% of the population is Rh positive.


Why do rh positive parents have an rh negative baby?

Each person carries two bits of rh imformation, called alleles, and each can be positive or negative. A person is rh+ if they have at least one positive allele. Only if both their alleles are negative are they considered as rh-. When two parents have a baby, they each pass one allele on. So if both parent has one positive and one negative allele, and both passed on their negative allele to their baby, then the baby would be rh negative. The chances of two rh positive parents having a rh negative baby are about 18%.