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Diabetes How to Prepare

How to Prepare for a Doctor Visit for your Diabetes

When a patient is going for a blood test related to their diabetes, they cannot eat or drink for at least 8 hours prior.

There are several known medications and foods that can alter the results of blood sugar tests. Try to avoid consuming these drugs and foods while fasting in order to avoid a false reading.

Medications to Avoid Before a Test

If you are taking a drug that affects your blood glucose level, it is prudent to notify your physician prior to the exam.

Medications that elevate blood sugar
Medications that lower blood sugar
Medications that mask blood sugar
  • Skin conditions — typically for dry, scaly itchy patches
  • High blood pressure
  • Mental illness and mood disorders
  • Attention deficit and hyperactivity disorders
  • Cancer
  • HIV / AIDS
  • Fungus
  • Congestive Heart Disease
  • Cold and cough remedies
  • Glaucoma
  • Inflammation
  • Cold and Epilepsy
  • Infections
  • Hypertension
  • Pain, Inflammation
  • Vitamin supplements (especially with Aloe or Ginseng)
  • Colds
  • Heart conditions
  • Malaria
  • Hypertension
  • Glaucoma
  • Heart failure

Warning: Do not discontinue medication without first consulting your healthcare provider.

In addition to prescribed medications, other foods and over the counter medications that you take at home can also affect your blood pressure. Prior to a blood test, avoid:

  • Alcohol
  • Caffeine
  • Carb-heavy foods
  • Over-the-counter cold medications (Those with pseudo ephedrine and phenylephrine)

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