Which tube type is often used for blood banking procedures?

The pink tube is the correct choice for blood banking procedures because it is specifically designed for collecting blood samples that will be used for blood type and crossmatch testing. This tube contains a specific additive that helps preserve the sample for serological tests that are crucial in blood transfusion processes. The labeling, color-coding, and additives associated with the pink tube indicate its use in compatibility testing, which is vital in ensuring a safe transfusion.

In contrast, the lavender tube is typically used for hematology tests such as a complete blood count (CBC) and usually contains EDTA as an anticoagulant. The SST (Serum Separator Tube) is primarily used for serum testing in a variety of chemistry tests but does not have the specific applications that the pink tube does in blood banking. The grey tube is often used for glucose testing and lactate measurement; it contains substances to inhibit glycolysis and therefore does not serve the needs of blood banking procedures.