Using a Haemocytometer

Counting red blood cells 

Volume = 0.1 x 0.2 x 0.2 = 0.004mm3 

Haemocytometer is used to count red blood cells. Before cells can be counted they have to be diluted with dacies fluid to give a 1 in 200 dilution. 

The North West rule is applied when counting the cells. 

Formula to use: 1/0.02 x E x 200 = E x 10 000 

With E being the number of red blood cells counted in…