Question

Red cell count is carried out by

• A. Haemocytometer
• B. Electrocardiogram
• C. Haemoglobinometer
• D. Sphygmomanometer

Answer 1

The correct option is A

Haemocytometer

The haemocytometer is a device used to count red blood cells. It consists of a thick glass microscopic slide with a rectangular indentation which creates a chamber. This chamber is engraved with a laser-etched of perpendicular lines. It is therefore possible to count the number of cells or particles in a specific volume of fluid, and thereby calculate the concentration of cells in the fluid.