Diabetes

Do You Know What Are Normal Blood Sugar Levels?

Differences with blood sugar levels occur just like we differ in life in many and varied ways. What may be slightly high for you may be acceptable for another person. The reverse could also be true. This is why doctors deal with “ranges” when talking blood glucose levels, rather than pointing to a specific number.

Consequently, diabetes patients frequently test their blood glucose levels to check if they are in a healthy range. They maintain acceptable levels with insulin injections or oral medications, as well as controlled nutrition and exercise.

Understanding Sugar Measurements

In the U.S.A., blood sugar is normally measured in milligrams of glucose per deciliter of blood. This is expressed as mg/dl. In the United Kingdom, Australia, Canada and other countries, you will see blood sugar reported as a ratio of millimoles/liter.

This is expressed as mmol/L. For comparison, you can multiply a Canadian or British glucose level reading by 18 to create an American reading. If a UK person’s fasting blood glucose level is 6, their US reading would be 108 mg/dl.

Normal, Fasting and Post-Meal Glucose Levels

Getting to know your blood sugar level means understanding when and why it can spike and drop. There are many things you eat or drink throughout the day that cause a change in your glucose level. This is why diabetes patients will frequently check their levels at strategic points during the day. If you check your glucose level first thing in the morning after you get out of bed before you eat, this is called your fasting blood sugar level. You should also check your blood sugar right before and 2 hours after eating.

It is also important to know how a person’s blood sugar level has changed over time. There is a long-term glucose test called hemoglobin A1c. You will also hear is referred to as HbA1c, or just A1c. This test provides you with an average reading over the last 2 to 3 months. Comparing your A1c to your current readings and past A1c results lets you know if your diet and exercise efforts have you heading in the right direction. A1c readings are expressed as a percentage.

For someone without diabetes, normal glucose levels are:

  • Fasting – under 100 mg/dl
  • Before meal – 70 – 99 mg/dl
  • 2 hours after a meal – under 140 mg/dl (this is also called postprandial sugar level)
  • A1c – under 5.7%

For someone with diabetes, glucose levels considered acceptable are:

  • Fasting – 80 – 130 mg/dl
  • Before meal – 80 – 130 mg/dl
  • Postprandial – under 180 mg/dl
  • A1c – under 7.0%

A finger-stick blood test and a glucose meter can tell you what your approximate blood glucose level is at any moment. If you currently are not diabetic or prediabetic, you should schedule regular testing with your doctor every year or two. A diabetic diagnosis will require testing at the previously mentioned times each day, and possibly even more frequently for some individuals.

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