If Both Parents Are O Negative What Will the Baby Be

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Experts say that knowing your claret type is important, especially if y'all accept frequent blood transfusions or you are trying to become pregnant.^[i] The ABO claret organization labels claret types with the letters A, B, AB, and O. Your blood also has a Rhesus or Rh factor, which can be either negative or positive. You lot inherit your claret type and Rh gene from your parents.^[ii] Studies show that to determine your Rh cistron, you can find out your parents' Rh factors for information or accept a blood typing test at your physician's office.^[3]

1. 1

   Understand what determines your Rh gene. Located on your ruby-red blood cells, the Rh gene is a protein you did or did not receive from your parents. You are Rh positive when you lot have the protein. If the poly peptide is not nowadays, you lot are Rh negative.^[4]

   • People with positive Rh factors take positive claret types, whether A+, B+, AB+, or O+. People with negative Rh factors then accept negative blood types, e.g. A-, B-, AB-, or O-.
   • The bulk of people have Rh positive factors.^[5]

2. 2

   Check your medical charts. It is possible that while having other bloodwork done, your Rh factor was tested as well. Ask your primary physician whether he/she has a blood blazon for you on record. If you take had blood transfusions regularly, your blood type is likely recorded. The same applies if you lot are a blood donor.

   • If you take a positive Rh factor, you can receive either Rh+ or Rh- blood during transfusions. If you have Rh- blood, yous must receive Rh-. blood^[half-dozen] (except in certain life-threatening emergencies when yous might need to receive Rh+ blood).

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3. 3

   Discover out your parents' Rh factors. Ask your parents what their Rh factors are. Information technology can be possible to learn your Rh factor past analyzing your parents' factors.^[7] If your parents both have Rh- claret, you will near likely exist Rh- (see bullet point for exceptions). If your mother is negative and your male parent is positive (or vice versa), you could be either positive or negative. In this type of state of affairs, you will need more definite bear witness from a lab test performed past your doctor or blood collection centers. It should be noted that if both of your parents are Rh+, you could still be Rh-.^[8]

   • Because people with positive claret types tin can possess either two positive Rh genes (Rh+/Rh+) or one positive and one negative (Rh+/Rh-), there can be instances where both parents have positive claret types but their children have negative claret types.^[nine]

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1. 1

   Ask your physician for a claret blazon test. If your parents have different Rh factors (or if they are both positive and you desire to know for sure that you are too positive), you can request a blood typing test. This outpatient procedure is fast and should non be very painful. Y'all tin go home subsequently.

2. ii

   Take blood typing test. A nurse or physician volition make clean a spot on your inner elbow or wrist with an antiseptic towelette. He/She will locate an easily accessible vein in this area. After wrapping a tourniquet around your upper arm to pool the blood, he/she will stick your vein with a needle. The needle is commonly connected to a syringe, which removes your claret. In one case he/she has taken enough blood, he/she will take out the needle and gently press the injection site with a sterile swab. Yous will then receive a bandage.^[10] Afterwards, the nurse will label your sample and send information technology to a lab for testing.

   • Doctors test children'south blood through the back of their hands.^[11]
   • If you feel like yous might pass out, tell the medical professional. He/She tin can help you recline.^[12]
   • You might feel a prick, sting, or mild pain when your nurse sticks you. After the test, you lot might trample at the puncture site. This hurting should not last long.^[xiii]

3. 3

   Test blood sample. At the laboratory, a technician will examination your sample for its Rh factor. He/She will combine a sample of your claret with an anti-Rh serum. If your cells clot, you have Rh+. On the other hand, if your blood cells do not stick together, you lot are Rh-.^[xiv]

   • It is likely that the lab will run tests to determine your ABO blood type as well during this time.

4. 4

   Recognize the importance of your results. Record your blood blazon in a safe place and share this information with your emergency contacts. You will need this information if you crave a blood transfusion or organ transplants. Additionally, if you are or plan to be pregnant, knowing your Rh cistron is essential.

5. five

   Be aware of your pregnancy risks. If you are female and Rh-, you lot will need to have your partner examination his Rh factor. If you are Rh- and he is Rh+, y'all can experience Rh incompatibility. This means that if your baby inherits his father's Rh+, your antibodies tin can attack the babe's carmine claret cells. This tin cause extreme anemia and possible death for the baby.^[15]

   • During your pregnancy, if you are Rh-, you lot will take blood tests to run into whether your trunk is producing antibodies against Rh+ claret. The first will happen in your starting time trimester and the second will occur when you are 28 weeks pregnant. If no antibodies have adult, you will receive a shot of Rh immune globulin. This shot will prevent your torso from producing harmful antibodies against your child.^[16]
   • If your torso has produced antibodies confronting Rh+ claret, you will not receive an immune globulin shot. Instead, doctors volition keep a close eye on your baby equally he/she develops. Either before or subsequently his/her birth, your child might receive a blood transfusion.^[17]
   • One time your baby is born, doctors can test his/her Rh factor. If your babe shares your Rh factor, yous will demand no further treatment. If you are Rh- negative, however, and your babe is Rh+, you must receive another immune globulin shot.^[18]

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• Question

  If i parent has a positive blood blazon and the other has a negative claret type, what are the possible blood groups and rhd combinations of their offspring?

  

  Dr. Ziadie is a board certified Pathologist in South Florida. She specializes in renal, transplant, and pediatric Pathology and has over 12 years of feel. She earned her medical degree from the University of Miami School of Medicine in 2004 and completed her fellowship in Pediatric Pathology at Children'south Medical Center in 2010.

  

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  Depending on the genetic makeup of the individuals, a positive/negative parental pairing can yield both a positive and negative claret type offspring OR only a positive claret type offspring. This is because each parent has two copies of the Rh cistron. A negative blood type parent must have two negative copies, which causes them to lack the Rh factor. A positive blood blazon parent can take two positive copies OR one positive copy and one negative copy.

• Question

  Why are at that place positive and negative blood types?

  

  Dr. Ziadie is a board certified Pathologist in South Florida. She specializes in renal, transplant, and pediatric Pathology and has over 12 years of experience. She earned her medical degree from the University of Miami School of Medicine in 2004 and completed her fellowship in Pediatric Pathology at Children's Medical Eye in 2010.

  

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  Positive and negative claret types refer to the presence or absence of a marking called the D-antigen (or Rh factor). This marker is located on the surface of your reddish claret cells. Blood from people who accept this antigen is chosen "positive." Claret from people who do not take this antigen is chosen "negative."

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Article Summary Ten

To make up one's mind if you lot accept a positive or negative blood type, check your medical records to see if your blood'south Rh factor has already been tested. Alternatively, ask your parents what their blood type is, since if they're both negative, you will be also. If not, enquire your doctor for a blood blazon test. For the test, let a nurse locate a vein on the within of your arm and take blood with a needle. Then, look to receive your blood type result from a lab. For tips on how your blood type tin can affect your pregnancy, read on!

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