What dilution factor is typically used for performing a platelet count from a sodium citrate tube?

For performing a platelet count from a sodium citrate tube, the typical dilution factor used is 1.1. This dilution factor is essential because it ensures that the sample is appropriately diluted to provide an accurate measurement of the platelet concentration in the blood sample. A dilution factor of 1.1 allows for optimal counting in the hemocytometer while also accounting for the anticoagulant properties of sodium citrate, which prevents the blood from clotting and maintains the integrity of the platelets.

Using this specific dilution promotes reliable results by balancing the volume and concentration of the blood sample, which is crucial for accurate platelet counting. Accurate platelet counts are significant in diagnosing various hematological disorders, making the selection of the correct dilution factor vital in clinical practice.