<prompt> 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?EDTAHeparinPotassium oxalate sodium fluorideTri Sodium citrate  <response>: 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. 