2. Draw 1mL of blood. Invert the syringe and remove air bubbles inside the syringe.
3. Use a lock stopper instead of needle to avoid exposure to air and to avoid blood sample leakage. Mix well by rotating the syringe to prevent clotting.
4. Put the sample in ice bath
-The specimen must be kept embedded in crushed ice and sent immediately to the laboratory for analysis (at least within ½ hour).
Modified Glucose Tolerance Test (MGTT)
1. Patients must fast for at least 8 hours.
2. Collect blood sample.
3. Give patient 75g glucose in 300ml water and drink within 5 minutes.
4. For children, the glucose dose is 1.75g/kg body weight to a maximum of 75g.
(Exception: Pregnant women receive 50g glucose to screen for gestational diabetes)
