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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

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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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Where Rh factor is present exactly?

blood cells: This is a protein, inherited, which is one the surface of red blood cells it is an important component of blood typing and must be matched for donation to prevent reactions. ...Read more

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Could you explain a Rh factor to me?

A blood antigen: It's primary importance is in pregnancy when an Rh- mother marries an Rh+ father and the baby is also Rh+. The mother has a high likelihood of developing antibodies to the baby's blood cells in this scenario. This leads to hemolytic disease of the newborn which can be fatal to the infant. It can be prevented with RhoGam, etc. that block the antibodies. This is why pregnant mothers are tested. ...Read more

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Simplist terms possible, what Rh factor is?

An antigen: Rh factor is an antigen on the red blood cells which may induce specific antibodies which may destroy the blood cells. ...Read more

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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

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What is the definition or description of: Rh factor?

What is the definition or description of: Rh factor?

See answer details.: 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. ...Read more

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Also does the Rh factor affect a baby's vulnerability to the disease?

Also does the Rh factor affect a baby's vulnerability to the disease?

Generally no: A negative Rh factor does not make a baby more susceptible to disease in their lifetime, either thru infection, environmental factors or bad habits. In the rare instance where they might need a blood transfusion, they could only get it from Rh negative donors.Females would require more monitoring during pregnancy if their spouse was Rh+.It is generally of no longterm consequence. ...Read more

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Could you tell me, in the simplist terms possible, what an Rh factor is?

How simple?: Genetic. You have it or lack it from conception. If you lack it, you can become allergic to it by transfusion or being pregnant with a baby who has it. If you are allergic and Baby has it, Baby can get very sick because of it. This used to be very common and serious but now we can prevent it. This is overly simple but will help you get started. ...Read more

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Baby is Rh factor positive. Is that good?

Baby is Rh factor positive. Is that good?

Only if you are Rh+: Rh positive mothers having rh+ babies-no problem! rh negative mothers with a rh+ baby especially the first and subsequent pregnancies will require Rhogam injection post delivery to prevent future rh disease issues and baby losses. ...Read more

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What can cause my blood Rh factor to change?

What can cause my blood Rh factor to change?

Genetic marker: Rh factor markers are inherited and do not change during a person's life, except in people who get bone marrow transplants. ...Read more