Changes

==Simplified compatibility tests==

==Simplified compatibility tests==

Time is needed to determine full compatibility tests between the donor and recipient. This is not always possible in the emergency situation. In these cases it is possible to undertake simplified compatibility tests.

Time is needed to determine full compatibility between the donor and recipient. This is not always possible in the emergency situation. In these cases it is possible to undertake simplified compatibility tests.

These tests can be undertaken in minutes however are much less reliable.

These tests can be performed in minutes however are much less reliable.

They involve centrifuging 0.5mls of the donors blood and 0.5mls of the recipient blood in an EDTA tube hence separating red blood cells and plasma. Various amounts(as below) are then added to gether and  blood smears are prepared.

They involve centrifuging 0.5mls of the donors blood and 0.5mls of the recipient blood in EDTA tubes hence separating red blood cells and plasma. Various amounts(as below) are then added to gether and  blood smears are prepared.

   

   

Three tests need to be undertaken 1)The major test, 3 drops of plasma from the recipient and one drop of red blood cells from the donor are added together ledt for 1-3 minutes and then examined microscopically.  If this reaction shows there is agglutination the transfusion should not be performed.

Three tests need to be undertaken 1)The major test where 3 drops of plasma from the recipient and one drop of red blood cells from the donor are added together left for 1-3 minutes and then examined microscopically.  If this reaction shows there is agglutination the transfusion should not be performed.

2)Minor test where 3 drops of donor plasma is added to 1 drop of recipient red blood cells.

[[Category:Transfusion Medicine]]

[[Category:Transfusion Medicine]]