Question

What kind(s) of cell(s) do we count in secondary squares? How many squares must we count?

Answer 1

In a direct microscopic cell count, we count all types of cells visible in the squares of a Petroff-Hausser chamber, including bacteria and other microorganisms. The number of squares we count depends on the size of the grid and is usually recommended to be at least 5-10 squares.

Step-by-step explanation:

In a direct microscopic cell count, we count individual cells in a Petroff-Hausser chamber, which has squares of various sizes. We count all types of cells visible in the squares, including bacteria and other microorganisms. The number of squares we count depends on the size of the grid and is usually recommended to be at least 5-10 squares.