BD Vacutainer Sodium Fluoride/Potassium Oxalate and Fluoride EDTA tubes are used for glucose determinations. The tubes are available in plasticand can be identified by a grey cap. Glucose values in unpreserved blood samples decrease quickly after collection as glucose is metabolised by the blood cells.
The additives contained in BD Vacutainer Fluoride/Oxalate and Fluoride EDTA tubes will stop enzymatic activity at the glycolytic pathway.