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Doctor insights on: Rh Factor

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Rh Factor (Overview)

The commonly used terms rh factor, rh positive and rh negative refer to the d antigen of the rh blood group system. In addition to its role in blood transfusion, the rh blood group system—specifically, the d antigen—is used to determine the risk of hemolytic disease of the newborn (hdn). Hdn sometimes occurs when an rh negative mother has an anti-d antibody and gives birth to an rh positive child.


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What is Rh factor and what is the causes of it?

What is Rh factor and what is the causes of it?

Part of blood: The rh factor is part of your red blood cells. They are a portion of the cell that mediates immune response. You received your rh factor when you were born. ...Read more

Rh Factor (Overview)

The commonly used terms rh factor, rh positive and rh negative refer to the d antigen of the rh blood group system. In addition to its role in blood transfusion, the rh blood group system—specifically, the d antigen—is used to determine the risk of hemolytic disease of the newborn (hdn). Hdn sometimes occurs when an rh negative mother has an anti-d antibody and gives birth to an rh positive child.


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What exactly is the Rh factor?

What exactly is the Rh factor?

A marker on Red: Blood cells. Red cells have a number of markers/antigens on their surface and one of thise is rh facotr. Rh has many subtypes, the one most people refer to is rh d. See this site for more info. http://www.ncbi.nlm.nih.gov/books/nbk2269/. ...Read more

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Why would I be given Rh factor?

Why would I be given Rh factor?

Protect next child: If you are rh negative & your newborn rh positive, then you will develop antibodies against rh positive blood. If your next child is also rh positive these antibodies may cross the placenta causing a serious problem, hemolytic anemia. In that case your newborn will be very ill & may require many blood transfusions. Rh factor helps prevent you from developing these dangerous antibodies. ...Read more

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If i donate blood to the red cross, could they tell me my Rh factor as well?

If i donate blood to the red cross, could they tell me my Rh factor as well?

Yes: You should be given a card stating your blood type. A or b, etc. Then they should state if rh negative or positive. Hope this helps. ...Read more

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How does the du variant affect a Rh factor reading on blood work?

How does the du variant affect a Rh factor reading on blood work?

Weak Rh: These people used to test rh negative, but are in fact rh positive. Du is a non-problem. I'm glad you're taking a proactive approach to your health, and thanks for writing. ...Read more

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If I am pregnant and have a negative Rh factor and my child has a positive factor. What does it mean for us?

If I am pregnant and have a negative Rh factor and my child has a positive factor. What does it mean for us?

RhoGAM: You'll need injections of rh-immune-globulin (rhogam) at one or possibly more scheduled times in the pregnancy. It's been a standard part of prenatal care for many years, ask your OB doctor when you see him/her. ...Read more

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What is an Rh factor?

What is an Rh factor?

Rh refers: To the rhesus factor . It is either present or absent on the surface of red cells, with positive being by far he more common. ...Read more

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What exactly is the Rh factor?

A marker on Red: Blood cells. Red cells have a number of markers/antigens on their surface and one of thise is rh facotr. Rh has many subtypes, the one most people refer to is rh d. See this site for more info. http://www.ncbi.nlm.nih.gov/books/nbk2269/. ...Read more