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What else can I help you with?
Why does haemolytic disease of the newborn not occur in rhesus positive mothers with a rhesus negative baby?
HDN only occurs in rhesus negative women who have been sensitized by positive blood. Rhesus positive mother can have a rhesus negative baby. In rhesus positive group, they have the antigen Rh. When this antigen from baby enters mother's blood circulation, because of inutero bleed in pregnancy; mother's blood cells will react to the foreign antigen and produce antibodies which are harmful to the baby's blood cells when they cross the placenta and enter baby's blood stream. These antibodies will break baby's blood cells down causing haemolytic disease. Whereas in rhesus positive mother with negative baby, if baby's blood enters mother's circultaion it will not produce any antibodies as there are no antigens in Rh negative blood. And if mother's blood mixes with baby's blood in the womb, baby will not have the ability to produce antibodies as their immune system is not developed. So there is no chance for haemolytic disease.
Why is RHoGAM administered to RH-mothers?
So that the mother's body doesn't produce antibodies against the Rh factor which would harm Rh Positive babies she may have in the future.
Can a negative and negative produce a 0 positive?
no
Why does a negative number times a negative number produce a positive number?
Negative times negative is always a positive.
Can an A positive father and A negative mother produce both A positive and A negative children?
Yes.
What creates Rh disease?
If an Rh negative woman is pregnant with an Rh positive fetus, her body will produce antibodies against the fetus's blood, causing a disease known as Rh disease
Can an o positive and an o negative produce an o negative?
no.
How do you multiple and divide positive and negative integers?
multiplying and dividing a negative number will "flip" the sign of the other number. So multiplying two negative numbers will produce a positive number. Multiplying one positive and one negative number will produce a negative. And of course two positive numbers yield a positive.
Can an O positive mother and O positive father parent an O negative child?
Parent? or breed? An O + mother and an O+ father who breed and produce offspring will produce an O+ offspring, not a - offspring. Of course, through adoption, they can parent whatever blood type they like. :} Positive (+) means you possess certain antibodies in your blood. So if both of you have the antibodies of course your child will too. I am not a doctor...but this was my understanding when researching this question when I was pregnant. I am O+ as well.
How does rh negative blood types affect pregnancy?
Having a negative rh blood type can seriously affect pregnancy and should be monitored closely. The possible incompatibility between the mother and the fetus could result in the mothers antibodies attacking the fetus as if it were a virus. This can be prevented by a shot roughly 28 weeks into the pregnancy.
What is positive immunity?
If a person's immune system is producing antibodies against a specific antigen, then that person has a positive or active immunity toward that antigen. If a person has merely been injected with antibodies but does not produce them, that is a passive immunity.
Why would there be cause for concern if a young pregnant mother is Rh negative her husband is Rh positive and this is their second child?
Their children have a 50/50 chance of being Rh Positive. If they have an Rh negative first child, there will be no problems with the second child (with Rh groups).There might be a problem if the first child was Rh positive. It is quite likely that during the delivery the child's blood mixed with the mothers. The mother would then have began producing Rh positive antibodies. This means that if the second child is also Rh positive - the antibodies will 'attack' the fetus.
