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…