Blood group systems: Difference between revisions
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'''Blood group''' (or '''blood type''') is a term used to clasify blood based on the presence or absence of a specific antigen on red blood cells surface. According to the International Society of Blood Transfusion, there are about 30 human blood group systems recognized so far<ref> | '''Blood group''' (or '''blood type''') is a term used to clasify blood based on the presence or absence of a specific antigen on red blood cells surface. According to the International Society of Blood Transfusion, there are about 30 human blood group systems recognized so far<ref>Table of blood group systems, ISBT (August 2008). Retrieved on 15 November 2010.</ref>.<br> | ||
== ABO blood group system<br> == | == ABO blood group system<br> == | ||
| Line 5: | Line 5: | ||
The most common blood group system being used nowadays is ABO blood group system. In this system, there are 4 classification of blood types. They are group A, B, AB and O. These groups are classified according to the presence or absence of ABO antigen. <br> | The most common blood group system being used nowadays is ABO blood group system. In this system, there are 4 classification of blood types. They are group A, B, AB and O. These groups are classified according to the presence or absence of ABO antigen. <br> | ||
'''<br>''' | '''<br>''' | ||
{| cellspacing="1" cellpadding="1" border="1" align="center" style="width: 451px; height: 140px;" | {| cellspacing="1" cellpadding="1" border="1" align="center" style="width: 451px; height: 140px;" | ||
|- | |- | ||
| '''Blood group''' | | '''Blood group''' | ||
| '''Antigen(s) present on erythrocytes''' | | '''Antigen(s) present on erythrocytes''' | ||
| '''Antibodies present in plasma''' | | '''Antibodies present in plasma''' | ||
| '''Genotype(s)''' | | '''Genotype(s)''' | ||
|- | |- | ||
| A | | A | ||
| A antigen | | A antigen | ||
| Anti-B | | Anti-B | ||
| AA or AO | | AA or AO | ||
|- | |- | ||
| B | | B | ||
| B antigen | | B antigen | ||
| Anti-A | | Anti-A | ||
| BB or BO | | BB or BO | ||
|- | |- | ||
| AB | | AB | ||
| A and B antigens | | A and B antigens | ||
| none | | none | ||
| AB | | AB | ||
|- | |- | ||
| O | | O | ||
| none | | none | ||
| Anti-A and B | | Anti-A and B | ||
| OO | | OO | ||
|} | |} | ||
== Rh blood group system<br> == | == Rh blood group system<br> == | ||
Rh blood group system is the second most important system in determining blood groups. It is based on the presence or absence of D antigen on the red blood cells surface. | Rh blood group system is the second most important system in determining blood groups. It is based on the presence or absence of D antigen on the red blood cells surface. | ||
== See also<br> == | == See also<br> == | ||
*[[Blood]] | *[[Blood]] | ||
== References<br> == | == References<br> == | ||
<references /> | <references /> | ||
== External links<br> == | == External links<br> == | ||
*[http://ibgrl.blood.co.uk/isbt%20pages/isbt%20terminology%20pages/table%20of%20blood%20group%20systems.htm Table of blood group systems]<br> | *[http://ibgrl.blood.co.uk/isbt%20pages/isbt%20terminology%20pages/table%20of%20blood%20group%20systems.htm Table of blood group systems]<br> | ||
<br> | <br> | ||
Revision as of 18:08, 15 November 2010
Blood group (or blood type) is a term used to clasify blood based on the presence or absence of a specific antigen on red blood cells surface. According to the International Society of Blood Transfusion, there are about 30 human blood group systems recognized so far[1].
ABO blood group system
The most common blood group system being used nowadays is ABO blood group system. In this system, there are 4 classification of blood types. They are group A, B, AB and O. These groups are classified according to the presence or absence of ABO antigen.
| Blood group | Antigen(s) present on erythrocytes | Antibodies present in plasma | Genotype(s) |
| A | A antigen | Anti-B | AA or AO |
| B | B antigen | Anti-A | BB or BO |
| AB | A and B antigens | none | AB |
| O | none | Anti-A and B | OO |
Rh blood group system
Rh blood group system is the second most important system in determining blood groups. It is based on the presence or absence of D antigen on the red blood cells surface.
See also
References
- ↑ Table of blood group systems, ISBT (August 2008). Retrieved on 15 November 2010.
External links