Question 28 of 56
Q.Name the fluid used for diluting RBC and WBC.
Tamil Nadu DgeTamil Nadu HSC First Year (DGE) Board 2019Subjective· 2mImportance★★★★★
50% · 28/56 Questions
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Start your 14-day free trial to unlock the full solution →For blood cell counting, RBCs are diluted using Hayem's fluid, while WBCs are diluted using Turk's fluid — each formulated to make the target cell type countable under the microscope.
When counting blood cells using a hemocytometer, the blood sample must first be diluted with a suitable fluid to spread the cells out and, in the case of the WBC count, to destroy/lyse the far more numerous RBCs so they don't obscure the WBCs:
- Hayem's fluid: used for RBC (erythrocyte) counts. It is an isotonic solution (containing sodium sulfate, sodium chloride, and mercuric chloride as a preservative) that dilutes the blood while keeping the RBCs intact and evenly distributed for counting. …
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