Rh Factor
Rh Factor
Rh Grouping / Factor
Apart from the antigens discussed in the previous section, another antigen, known as Rh antigen (similar to the one present in Rhesus monkey) is also found on the RBCS surface in majority of humans (nearly about 80%). Individuals having Rh antigen are called Rh positive and those without the Rh antigen are called Rh negative
.
Rh group is mandatory to be matched before transfusion of blood is done. An person if gets exposed to
blood, it will form specific antibodies against the Rh antigens.
Rh Incompatibility During Pregnancy : - A special case of mismatching of Rh group or Rh incompatibility has been observed between the
blood of a pregnant mother with
blood of the foetus (the foetus of Rh woman and a
man).
In such a case, mother becomes sensitive, while carrying an baby in her womb. The reason is that some of the RBCS from the developing foetus enter into the bloodstream of the mother during development. This causes the development of anti-Rh antibodies in mother's blood.
The Rh antigens of the foetus do not get exposed to the Rh blood of the mother in case of first pregnancy (because two blood remain separated by placenta).
However, during delivery of the first child, there occurs a possibility that maternal blood may get exposed to small amounts of Rh blood from the foetus. Hence, preparing antibodies against Rh antigens in her blood. Thus, in case of her subsequent pregnancies, Rh foetuses get exposed to the anti-Rh antibodies. These antibodies will reach the blood of the foetus (Rh *) and destroy foetal RBCS.
This could be fatal to the developing foetus and could cause severe anaemia and jaundice to the developing baby. This is known as erythroblastosis foetal is or haemolytic disease of newborn.
Precautions : -
1. This condition can be avoided by administering anti-Rh antibodies to the mother immediately after the delivery of the first child.
2. Rh factor was discovered by Landsteiner and Weiner (1940) after immunising the rabbits with the blood of a monkey (Macaca rhesus).
3. There are 30 or so, known antigens on the surface of red blood çells that give rise to different blood groups, eg., MN, etc.
Students / Parents Reviews [20]
My experience with Abhyas Academy has been very good. When I was not in Abhyas whenever teacher ask questions I could not speak it confidently but when I came in Abhyas, my speaking skills developed and now I am the first one to give the answer of teachers question.
Upmanyu Sharma
7thAbhyas is good institution and a innovative institute also. It is a good platform of beginners.Due to Abhyas,he has got knoweledge about reasoning and confidence.My son has improved his vocabulary because of Abhyas.Teacher have very friendly atmosphere also.
Manish Kumar
10thWhen I have not joined Abhyas Academy, my skills of solving maths problems were not clear. But, after joining it, my skills have been developed and my concepts of science and SST are very well. I also came to know about other subjects such as vedic maths and reasoning.
Sharandeep Singh
7thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
Shreya Shrivastava
8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
10thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
Barkha Arora
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thAbhyas is an institute of high repute. Yogansh has taken admission last year. It creates abilities in child to prepare for competitive exams. Students are motivated by living prizes on basis of performance in Abhyas exams. He is satisfied with institute.
Yogansh Nyasi
7thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
8thUsually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
Anika Saxena
8thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
Ayan Ghosh
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
