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What is the normal blood sugar level?

Measuring the level of sugar in the blood is the primary means by which to know whether glucose levels are within the normal range or have increased to the rate that indicates the possibility of developing diabetes 

so it is important to know the normal blood sugar level, abnormal ratios, and whether they indicate To a health condition that may require follow-up with a doctor 

and in this article, we will learn about common tests for measuring blood glucose, and the normal and abnormal levels in each of them.

What is the normal blood sugar level?


What is the normal sugar level?

Blood sugar level means the amount of glucose present in the blood at any time. A high or low blood sugar level may indicate a condition that needs medical attention. 

The normal sugar level varies from person to person, and it depends on several factors, including:

  • rate of physical activity.
  • Diet.
  • daily habits.
  • Having chronic diseases.
  • Some types of medication.
  • The level of hormones in the body.
  • BMI.
  • pregnancy.

The blood sugar may rise or fall but remains normal, so the reference (normal) ratios are in the form of a range with a minimum and a maximum, and normal blood sugar is the one that falls within that range.

Your blood sugar levels must remain within a healthy range. If glucose levels drop too low, it affects the ability to think and function normally, and its complications may lead to unconsciousness and death. 

Also, if glucose is high and its level is not controlled, it may cause organ damage over time.

There is more than one test to measure the level of glucose in the blood, as it can measure the level of glucose in the blood during fasting, after eating, or at any time of the day, and the normal levels of glucose vary in each of them, and we will talk about them in detail below.

What is the normal blood sugar level for a fasting person?

The fasting glucose test measures the level of glucose in the blood after fasting for a whole night (approximately 8-12 hours), and it is the most common test for diagnosing diabetes, because it is more accurate, as the body is in a state of food deprivation, and thus the glucose level is somewhat low. 

So, if the results indicate a significant increase in the level of glucose during fasting, it may indicate a large percentage of diabetes.

How can I prepare for the test?

You must refrain from eating any food or drink, except water, at least eight hours before the examination.

How is the test done?

The specialist draws a blood sample from the vein and sends it for examination.

What do the results of a fasting blood sugar test mean?

Normal fasting blood glucose for adults without diabetes is between 70 and 100 milligrams per deciliter.

If the ratio ranges from 100 to 125 mg/dL, this means that the person may be in the stage of prediabetes (prediabetes means that a person's blood glucose level is higher than normal, but is not yet considered a diabetic).

If the blood sugar level is 126 mg/dL or higher on two separate tests, this indicates that the person has diabetes.

What normal sugar rate after eating?

In addition to checking the level of sugar during fasting, the doctor may order another test, which is to check the sugar two hours after eating, and this test is done to see how the body responds to sugars and carbohydrates after eating.

During the digestion of food, blood glucose levels rise dramatically. In response, the pancreas secretes insulin to transport glucose to muscle cells and other tissues for use as fuel. 

Within two hours of eating, insulin and blood glucose levels should return to normal. If blood glucose levels remain high, it may indicate diabetes.

How can I prepare for the test?

You must fast for 12 hours before the test and then eat a meal containing at least 75 grams of carbohydrates. After the meal, you should not eat anything else before the test for two hours. 

Also, you should not exercise intense physical exertion during this period because it may affect the results of the test. 

The doctor must be informed of all medications and nutritional supplements that the patient is taking that may affect the result of the examination.

What do the test results mean?

Test results may vary based on age, gender, medical history, and other factors, however, a normal two-hour postprandial blood glucose test result for those without diabetes is less than 140 mg/dL.

If the ratio ranges from 140 to 199 mg/dL, this means that the person is in a pre-diabetes stage.

If the blood sugar level two hours after eating is 200 mg/dL or more, this means that the person has diabetes.

How is the test performed?

The test is done on a blood sample drawn from a vein in the arm or hand.

What is the normal rate of random sugar?

A random glucose test is a method of measuring the amount of glucose in the blood at any time of the day. 

It is called random or accidental because it is performed at any time of the day, whether the patient is fasting or not. 

This will not affect the test, and this test is used as a quick way to find out whether The person has diabetes, which is an important test, especially for people with type 1 diabetes who need insulin injections as an emergency treatment.

If a random glucose test result indicates that a person has higher than normal glucose levels, the doctor will order a repeat test on another day to confirm the diagnosis or other tests including a fasting blood glucose test two hours after eating.

How is the test performed?

The test requires a small sample of blood that a doctor or nurse takes with a needle, often from a finger.

What do the test results mean?

In a random glucose test, a result of 200 mg/dL or higher indicates an Although a person may have diabetes, however, for a confirmed diagnosis 

the doctor usually repeats the test on another day, and one of the studies of risk factors for diabetes indicates that a random glucose test showing a reading of more than 100 mg/ml deciliter is a greater risk factor for developing diabetes than conventional factors, such as obesity.

In sum, the normal sugar level varies depending on the type of test used to measure the level of glucose in the blood as explained in the article 

and many people will not start to feel symptoms of high blood sugar until the level reaches 250 mg/dL or higher, and some changes in the diet help Lose weight in pre-diabetes may reduce the risk of developing it.

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