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Doctor insights on: O Positive Blood Type Rh Factor

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Blood test says my blood type is O Positive but on the part where is says Rh factor it says negative. How does that make sense? Mean something else?

Blood test says my blood type is O Positive but on the part where is says Rh factor it says negative. How does that make sense? Mean something else?

It doesn't: It doesn't really, but here's what probably happened: If you're pregnant and getting prenatal labs, in RH negative patients who've had a previous pregnancy it's typical to test for RH factor antibody (an immune response against RH+ blood). This test is not necessary in RH+ women, but it was likely done by routine, and the result, as expected in negative since an RH+ person won't have RH Antibody ...Read more

Rh Factor (Definition)

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 ...Read more


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My mother claims she has an O- blood type but insists also contains the RH factor. How is this possible if possible at all.

My mother claims she has an O- blood type but insists also contains the RH factor. How is this possible if possible at all.

Possibly Du positive: It is possible she is simply confused and thinks there is a negative Rh factor and a positive Rh factor, but there may be another explanation. The normal Rh factor is referred to as "D" but there is a weak variant referred to as "Du". Your mother could be D negative but Du positive and under certain circumstances might appear to be O negative. Nevertheless she is still considered Rh positive. ...Read more

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When hospitals type and match blood, does it show the Rh factor or just the blood type?

When hospitals type and match blood, does it show the Rh factor or just the blood type?

Oh, MUCH more...: ABO type, Rh type, and a screen for any unusual antibodies from other groups that may affect the safety of transfuson. Typing blood is an extremely deep subject and there are actually dozens of types with which I'm experienced and many more that I've only read about. ...Read more

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Hi doctors !whats Rh factor , is it good or bad for someone to have it with blood type what's the risk of Rh ?

Hi doctors !whats Rh factor , is it good or bad for someone to have it with blood type  what's the risk of  Rh ?

Normal blood type: Rh factor refers to one of two major blood groups for all blood types. People are either rh positive or rh negative. It is important to know your rh status for receiving blood products. Rh determines blood compatibility and is neither good or bad. ...Read more

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My blood type is rh- & my spouse is +. Are Rh factor problems common if my first child is rh+? I rec'd rhogam shots timely. Ttc 2nd child currently

My blood type is rh- &  my spouse is +. Are Rh factor problems common if my first child is rh+?  I rec'd rhogam shots timely.  Ttc 2nd child currently

Rh blood type: Being rh-, any child you bear that has rh+ blood type might be in danger of severe anemia. This incompatibility can be prevented by Rhogam injection at 28 weeks of gestation and again soon after the baby's birth . Having received Rhogam during your first pregnancy and after delivery will help prevent problems with your second baby. Good luck. ...Read more

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Can two parents with o positive blood type make an a positive child? I've heard different answers

Can two parents with o positive blood type make an a positive child? I've heard different answers

Using : Using the ABO blood typing system- two parents with type o blood would have a baby with type o blood. The baby may or maynot be rh positive. ...Read more

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What does it mean if my blood type is o positive?

What does it mean if my blood type is o positive?

Antigens: You lack either the a or b antigens on your blood cells but do have rh positive antigen. It means you can donate blood to anyone who is rh positive irrespective of their blood type. There is no relationship of blood type to blood function or any aspect of health. ...Read more

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What does it mean when your blood type is o positive?

Blood donor: Your red blood cells can be transfused into almost any other person who is rh positive. It has no implications for your health. ...Read more

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My blood type is o positive. My son is ab. What is my husband's blood type?

My blood type is o positive. My son is ab. What is my husband's blood type?

Cannot tell: If a mom has o+ blood type, and says her son is ab (meaning either ab+ or ab negative), there is not enough information to tell what blood type the mom's husband has. ...Read more

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My blood type is o (positive) , does that mean I can only recieve o ( positive or negative) in case of an emergency?

My blood type is o (positive) , does that mean I can only recieve o ( positive or negative) in case of an emergency?

O Positive: O + blood type means you have the rh antibody. If you receive o negative blood, which has no rh antibody, you are ok. If you receive o+ blood, you're ok. But if you donate blood, there may be a problem to the recipient, if they have negative blood type. Any transfusion is preceded by a cross match wherein the two bloods are checked for compatibility to lessen the risk of transfusion react. ...Read more

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If I am a negative blood type, can I receive o positive?

If I am a negative blood type, can I receive o positive?

Not a suitable issue: For self treatment. You are not likely to pick out the blood for your own transfusion. Blood banks do not give incompatible blood. O negative people are given o negative blood except in rare emergencies and even then only to males or post-menopausal women. ...Read more

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The husband is ab blood type and wife is o positive. Can we have a a positive blood?

The husband is ab blood type and wife is o positive. Can we have a a positive blood?

Blood types: You can have children who are a positive or b positive. You potentially could have rh negative children too but that question can't be answered for certain. ...Read more

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Can a couple who both have o negative blood type have a child that has o positive blood?

Can a couple who both have o negative blood type have a child that has o positive blood?

Blood type: Assumming paternity is not in doubt, the rh antigen for one of the parents may be more subtly expressed on routine blood type testing. More detailed tests can be done to diisclose which parent is rh "+" and explain the apparent discrepancy. ...Read more

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O negative and a positive what what could baby have o positive what blood type can baby have

See below: If one parent is o+, and one is o-, the baby is definitely going to be type o. It might be + or - depending on the genetic mix during conception. ...Read more

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If my husband blood type is b negative and my blood type is o positive what will the baby blood type be?

If my husband blood type is b negative and my blood type is o positive what will the baby blood type be?

It can be either: B or O, positive or negative, depending on which 2 genes you both carry. Your husband may have 2 B genes, or a B and an O gene. You may have two positive genes or a positive and a negative gene. B+O would equal B, O+O would equal O. Negative + negative = negative, while negative + positive = positive. It depends on what you both carry and what you pass on! ...Read more

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If my spouse and I have the same blood type (o positive) will this affect us at the time to become parents?

If my spouse and I have the same blood type (o positive) will this affect us at the time to become parents?

No: Both of you being the same blood type will not cause any problems. If anything it will obviate the risk of hemolytic disease in the fetus/newborn, ...Read more

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What happens if my blood type is o positive and my boyfriend is o negative what should our son's blood type be?

What happens if my blood type is o positive and my boyfriend is o negative what should our son's blood type be?

Depends: his blood type can be O positive or O negative. There are 2 genes for RH factor. You can either have 2 genes for positive or one. So if you passed the RH positive gene to your son, then he is positive, it not then he is negatve. ...Read more

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My husband blood type is B negative and my blood type is O positive is it possible to have a child that's blood type is O positive?

My husband  blood type is B negative and my blood type is  O positive is it possible to have a child that's blood type is O positive?

Yes!: Yes, it is entirely possible. Since you are O+, your newborns blood type will likely be checked after delivery to determine if he/she is at increased risk for jaundice. ...Read more

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What does it mean when you have a Android (methyltestosterone) Body type? How does body wrk? Does blood type depends on how lose wt? Am O positive,WT:131,5'0

Android/gynoid: Android (methyltestosterone) body type refers to women whose waist/stomach is their largest body measurement; in contrast gynoid means a woman whose hips/buttocks are the largest measure. Android (methyltestosterone) bodies "work" fine, but there some concern that the fat location confers higher risks of metabolic and cardiovascular disease. Your blood type O+ has nothing at all to do with weight and will stay the same for life. ...Read more

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If the mom have type o positive and the dad have type a, what blood type will the child have? What kind of blood type will the child have? Can a child have a different blood type?

If the mom have type o positive and the dad have type a, what blood type will the child have? What kind of blood type will the child have? Can a child have a different blood type?

The : The child will either have a or o type blood and the rh can be either positive or negative. The child will not have ab, or b blood types.


Legal disclaimer: I am providing this general and basic information as a public service and my response to this question does not constitute a doctor-patient relationship. For any additional information, advice, or specific concerns, please speak with your own physician. The information provided is current as of the date of the answer entry. ...Read more

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My mom and dad both have o positive blood types why do I have a positive blood type?

My mom and dad both have o positive blood types why do I have a positive blood type?

Blood typing genetic: If you are the biologic child of 2 Blood Type O individuals, you cannot have Type A Blood. Tests are not perfect, however, and you could be misinformed. The test was the basis of the TV Series "Switched at Birth" in which a child tested in science class and her parents went to their doctor, retested, and found out she wasn't their child. This is unusual and rare. ...Read more

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If my blood type is o positive and my husband is o negative can we have a baby that is o positive blood types?

If my blood type is o positive and my husband is o negative can we have a baby that is o positive blood types?

Yes: You will pass on the positive trait at least half the time, maybe always, so the chance is very good that the baby will be O positive. ...Read more

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My mom has o positive and my sister has o negative. I have A positive. what blood type would my dad have?

My mom has o positive and my sister has o negative.  I have A positive.  what blood type would my dad have?

Not single answer: Your father has to have blood group A, for you to have blood group A.
He could be Rh positive or negative.
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Dr. M. Hytham Beck
59 doctors shared insights

Blood Type O Positive (Definition)

Blood type O positive (Neither A or B blood type antigen is present, but there is Rh, ...Read more


Dr. Louis Gallia
90 doctors shared insights

Blood Type (Definition)

Refers to the proteins present or not present on the surface of red blood cells. The types are a, ...Read more