Hayem's solution

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The Hayemsche solution is for the count of red blood cells in the Neubauer chamber used. It serves to treat the erythrocytes and prevent aggregation.

composition

Hayem's solution contains mercury (II) chloride (sublimate), sodium sulfate , sodium chloride and distilled water. The osmolarity of the solution is a maximum of 729 mOsmol / l. The solution is made durable by the mercury (II) chloride. The solution contains a high concentration of SO 4 2− ions from sodium sulfate. There is an increase in the negative charge on the erythrocyte surface. The aggregation of the red cells is thereby reduced. This means they are evenly distributed in the individual fields of the counting chamber. The high concentration of sodium chloride increases the osmolarity of the solution. The erythrocytes therefore shrink, making them easier to see under the microscope.

Naming

Hayem's solution is named after the French hematologist Georges Hayem (1841–1933), who first described this solution.

literature