how to test blood group
how to test blood groups :- on 6 tips step 1. take 1 clean slide, 3 antisera like antisera A,B,D.. step 2. clean the finger and extract 3 drops blood on slide like this pic. step 3. put antisera A on drop no. 1 and put the antisera B on drop no.2, and put the antisera d on drop . no.3. step 4. If clamping are occure like on drop no.1 (blue) that is A +ve blood group.(without clamping . on drop no.2 and 3) and step 5. If clamping are occure like on drop no.2 (yellow) that is B +ve blood group.(without clamping . on drop no.1 and 3) and step 5. If clamping are occure like on drop no.3 (red) that is Rh +ve blood group. . (drop 3 is olny show that like +ve or -ve,if clamping present that is +ve and if clampimg . absent then -ve ...