You are working in a PHC and have to send a sample for blood glucose estimation. Which of the following anticoagulant will you use for sending your sample?: (A) EDTA, (B) Heparin, (C) Potassium oxalate + sodium fluoride, (D) Tri Sodium citrate
Answer is C. Blood samples for measurement of glucose are taken in Gray l containing Potassium oxalate + sodium fluoride. Enolase enzyme in the glycolysis is inhibited by fluoride so sample is collected in tubes containing fluoride to inhibit glycolysis.