When a venipuncture is performed using a lavender top vacutainer tube, the sample

When a venipuncture is performed using a lavender top vacutainer tube, the sample is commonly used for hematology testing, such as complete blood counts (CBC). The lavender top tube contains an anticoagulant called EDTA (ethylenediaminetetraacetic acid), which prevents the blood from clotting. This allows for the preservation of the cellular components of the blood for accurate hematological analysis.

References:

Clinical Laboratory Science: The Basics and Routine Techniques by Jean Jorgenson Linné

Phlebotomy Essentials by Ruth E. McCall and Cathee M. Tankersley