A blood glucose test measures the amount of glucose in your blood.Your doctor may order this test to help diagnose diabetes. And people with diabetes can use this test to manage their condition.

It is very important that you know and understand the method, precautions necessary for the tests so that the results are more accurate. Here are a few tips that you would want to know about particular tests( fasting and random)

  1. RANDOM BLOOD SUGAR TEST– If you are going for a random glucose test, you may eat and drink normally as you do but don’t overdo on high sugary drink.
  2. FASTING BLOOD SUGAR TESTING– If you will be taking a fasting blood glucose test, you must not eat or drink anything other than water for 8-10 hours before the test.
  3. It is much better if you can schedule your fasting glucose test early in the morning so you can have overnight fasting and will not have to fast during the day.
  4. 2-hour Postprandial (post lunch) blood sugar- For a 2-hour postprandial test, you need to have your blood collected exactly 2 hours after a regular meal, ideally breakfast or Lunch.


            A few general tips to keep in mind –

  • High stress is another reason for high blood glucose levels temporarily. It is very important that you tell your doctor when your doctor is reviewing the lab results,  if you had any health issue recently such as any infection or any stressful event recently.
  • Drink plenty of water before your blood test. This helps keep your blood pressure from dropping. The leading cause of fainting and dizziness during a blood test is a drop in blood pressure.
  • Take a snack with you if you will not be going directly back home or to work. That way you can eat it directly after the blood draw.
  • You should never stop taking prescribed medication on the day of the test, unless you’re advised to do so by your doctor.

– Dr. Afroze

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