Causes, Symptoms, Diagnosis & Treatment For Rh Incompatibility

5 min read

Once the Rh incompatibility test result turns out to be positive, lots of doubts and worries may arise. The blood group, which never causes any trouble until pregnancy, can develop complications during pregnancy. This complication is called Rh incompatibility. Rh incompatibility which usually will not create many issues during the first pregnancy. However, it can have a significant effect on subsequent pregnancies. Continue reading to get an overall idea about the Causes, Symptoms, Diagnosis & Treatment Of Rh Incompatibility.
Rh disease

All About Rh Incompatibility
What Is Rh Factor?
Causes Of Rh Incompatibility
Complications Due To Rh Incompatibility
Symptoms Of Rh Incompatibility
Who Are At The Risk Of Rh Incompatibility?
Diagnosing Rh Incompatibility
Treating Rh Incompatibility

All About Rh Incompatibility

It is a medical condition that happens over the course of pregnancy. Rh incompatibility happens if the pregnant woman is Rh-negative blood type (RBC without Rh factor) and the blood type of her unborn baby is Rh-positive (RBC with Rh factor). As both mother and child have different blood types, it will develop an inconsistency or Rh incompatibility. Read on to know about Causes, Symptoms, Diagnosis & Treatment For Rh Incompatibility

What Is Rh Factor?

There are four basic blood types. A, B, O, and AB. All these blood types carry a particular protein known as the Rh factor on the surface of each blood cell. However, the blood cells of a small percentage of people do not carry Rh factor. Rh+ refers to the presence of Rh factor, while Rh-ive refers to its absence. As in the case of blood group, the Rh factor is also hereditary. One gets it from the parents. The majority of the people have Rh-positive type of blood.

Causes Of Rh Incompatibility

Once the pregnant woman has Rh-negative blood type and her unborn baby has Rh-positive blood type, then pregnant woman’s body will mistake the Rh-positive protein in the blood of the unborn baby as an outside substance. The blood from the baby can get into the mother’s blood stream, any time during pregnancy, labor, or (most probably) during the time of delivery. If this happens, the immune system of the mo ther will develop antibodies against her own unborn baby’s red blood cells. These antibodies might cross the placenta to attack the baby’s red blood cells. These antibodies, generally, do not create issues if the woman is pregnant for the first time. It is due to the fact that the baby is usually delivered before the antibodies in the blood increases.
The antibiotics stay in the woman’s body. The body will make more Rh antibodies in successive pregnancies. Therefore, Rh incompatibility tends to cause complications in the next pregnancy.

Complications Due To Rh Incompatibility

Rh incompatibility will cause hemolytic anemia in the unborn baby. This means the destruction of red blood cells happens sooner than the body’s ability to replace them. RBC carries the oxygen to different body parts. So if the red blood cells are not sufficient, the baby fails to get enough amount of oxygen. It can cause significant problems.

As the result of breaking down of RBC, hemolytic anemia can develop. Depending on the severity of the hemolytic anemia, it can be lethal as chances of edema and heart failure increases
Breaking down of RBC can result in the formation of a chemical called bilirubin, which can give rise to jaundice in newborns
Increased amount of bilirubin after birth – hyper-bilirubinemia – can result in an enlarged liver and spleen, severe jaundice, and even can prompt cerebral palsy in some cases

Symptoms Of Rh Incompatibility

As explained above, Rh incompatibility affects the unborn baby and some symptoms will be seen in them. Some of the signs that show up in the baby are:

Low muscle tone
Symptoms of jaundice like yellowish color of the skin and the white part of the eyes
Lethargy

Who Are At The Risk Of Rh Incompatibility?

Before pregnancy, if by any chance the mother to be is exposed to Rh positive blood, then she is at a higher risk of Rh incompatibility. This exposure may happen:

If the mother to be has bleeding or abdominal pain during pregnancy
Pregnancy which is ectopic
Miscarriage or even an abortion that has been induced
An incompatible blood transfusion
Using an injection whose needle had blood which was Rh-positive
Amniocentesis test and also chorionic villus sampling (CVS) test can expose the pregnant woman to Rh positive blood

If the mother fails to get a RhoGam shot, she will be at risk of Rh incompatibility in her existing and all subsequent pregnancies

Diagnosing Rh Incompatibility

A blood test will likely be undertaken during the first prenatal visit to check if the pregnant woman is Rh-positive blood type or Rh-negative blood type.

If the expecting mother is Rh-negative, the doctor may ask for father’s blood group. However, in case the father to be is also Rh-negative blood type, there is nothing to worry about
If the blood type of father is Rh-positive and the mother is Rh-negative, then the baby can have higher chances of being Rh-positive blood type. Certain screening tests will help the doctor to determine whether the mother to be is at any risk of Rh incompatibility
A positive direct Coombs test is an indication of Rh incompatibility. This test uses a blood sample to check for antibodies that are attached to the surface of your red blood cells
Diagnosing higher-than-normal levels of bilirubin in the infant’s blood shows Rh incompatibility
Signs of red blood cell destruction in the baby’s blood are signs of Rh incompatibility. By examining the size and shape of RBC of the baby under microscope helps to find it out

Treating Rh Incompatibility

Understanding the Causes, Symptoms, Diagnosis & Treatment For Rh Incompatibility is important. The objective of treating Rh incompatibility is to make sure that the newborn is fine. Besides, the treatment helps to bring down the risk of Rh incompatibility in the subsequent pregnancies. In the case the mother possesses a risk of developing Rh incompatibility, the doctor, along with the treatment, will closely monitor the mother and child throughout the pregnancy. The doctor may prescribe an injection called Rh immune globulin or RhoGam.
This shot will keep the mother’s blood from making any Rh antibodies that attack the baby’s blood. In the case a woman with Rh-negative blood receives RhoGam shot, it brings down the chances of her blood getting mixed with the Rh-positive type of blood.
Treatment for a baby who has hemolytic anemia will vary with respect to the severity of the condition.
For mild and moderate hemolytic anemia, the treatment involves

Phototherapy: Special lights are used to treat the baby in case the amount of bilirubin in their blood is not reducing
Medicines: Certain medicines and supplements are given to the baby, which help the baby’s body to create RBCs

For severe hemolytic anemia

Blood transfusion: Doctors may recommend a blood transfusion for the baby.
Inducing labor: If the baby can stand a preterm birth, the doctor induces the labor and the blood transfusion is done in the baby. In this process the newborn’s blood will be gradually removed and replaced with new blood

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