Glucose levels, as the name suggests, indicates how much glucose is in your blood. Otherwise known as blood glucose levels or blood sugar levels, this is usually measured to check if a person has diabetes or some other illness. Normally, glucose levels rise once you eat, since your body will extract the glucose from the food you’ve eaten, which will then be used as fuel or energy. However, some people may experience high or low glucose levels, which can lead to health problems.
Different glucose levels
There are three different types of glucose levels:
- Normal. Most people have normal blood glucose levels.
- High. A high glucose level can indicate hyperglycemia, a condition wherein the body is unable to produce enough insulin in order to regulate the amount of glucose in the person’s blood. Retaining a high blood sugar level can lead to ailments such as diabetes mellitus, vision and nerve problems, and increased vulnerability to cardiovascular diseases.
- Low. Low glucose levels can indicate hypoglycemia. Low amounts of glucose in the system can cause weakness, even to the point of fainting.
Different glucose levels scales have been created to determine whether a person’s blood sugar level falls within normal range or not. Furthermore, different laboratories use different scales in order to determine whether the glucose levels are within normal range or not. Your doctor will also take your glucose levels into consideration vis-a-vis your other laboratory results to diagnose what your health problem is.
Tests that monitor glucose levels
There are several tests that may be conducted in order to determine and monitor a person’s glucose levels. These include:
- Blood tests. Most blood tests will require a person to fast for about 8 hours before they can go through the tests. However, exceptions are made for diabetes patients, given that their glucose levels will need to be constantly monitored, especially for those who have a severe form of the condition. There are various kinds of blood tests that may be conducted in order to determine a persons glucose levels. These include:
- Fasting glucose levels. The test to check for fasting glucose levels will require the patient to fast for 8 hours before getting the test.
- Glucose tolerance test. After fasting, the patient will be asked to drink a sugar-water solution. A sample of his or her blood will then be tested after a few hours to check whether his or her glucose levels have risen and fallen quickly, which is a sign of diabetes.
- Random blood glucose test. The normal glucose levels for the random blood glucose test are from the low to the mid-100s.
- Two-hour posttprandrial blood sugar. This test measures a person’s glucose levels two hours after he or she starts eating a meal.
- A continuous glucose monitor. Those who have diabetes may be asked to wear a continuous glucose monitor, which is a small sensor wire that is inserted beneath the skin in the abdominal area in order to take the person’s glucose levels every five minutes for easy monitoring.
- Blood test kit. Those who will need to monitor their glucose levels regularly but not as frequently as diabetes patients who need to wear a continuous glucose monitor may be asked to use a blood test kit that allows them to see what their blood sugar levels are by putting a blood sample on a strip and inserting it in the measuring device.
- Urinalysis. A person’s glucose levels may also be determined through urinalysis.
Should you monitor your glucose levels?
Not everyone is required to monitor their glucose levels. For example, those who have normal blood sugar levels don’t need to go through these tests regularly, since they don’t have any problems with their blood sugar. However, there are also individuals who will need to have their glucose levels tested. These include:
- Diabetes patients. Diabetes patients have fluctuating glucose levels, which is why it is important for their glucose levels to be monitored in order to see if they still fall within the healthy range or not.. However, some diabetes patients may need more careful monitoring compared to others, given the severity of their condition. For diabetes patients who need to monitor their blood sugar levels, the most important times to check their glucose levels are upon waking up, before bedtime, and anytime when they suspect their blood sugar levels fluctuating.
- Those who are suspected to have diabetes. Individuals who are experiencing some of the symptoms of diabetes may need to have their glucose levels checked in order to confirm whether or not they have diabetes.
- Those who are suspected of suffering from an ailment. It’s not just diabetes that is affected by a person’s glucose levels. There are other conditions that can have fluctuating blood sugar levels as a symptom. Those who have frequent fainting spells, seizures, and other such symptoms may also need to get their blood sugar tested to check if it’s still within normal range or not.
- Pregnant women. Pregnant women are at risk of developing gestational diabetes, a type of diabetes experienced by some expectant women which can later evolve into Type I or Type II Diabetes.
What happens if you have low or high glucose levels?
A low or high glucose level doesn’t automatically mean that you have a health condition such as diabetes. There are a lot of factors that can cause blood sugar levels to rise or fall. These include:
- Diet. Diet is one of the biggest factors that can affect blood sugar levels. The more carbohydrates you eat, the higher the chances of having a high glucose level.
- Stress. Severe stress can temporarily cause blood sugar levels to spike.
- Medications. Medications such as beta-blockers, oral contraceptives, salicylates, and tricyclic antidepressants can cause blood sugar levels to rise, while drugs such as alcohol, acetaminophen, and anabolic steroids can cause blood sugar levels to fall.
- Tumors. Pancreatic tumors can cause blood sugar levels to plummet, because it is unable to produce enough insulin to regulate the glucose in the bloodstream.
If you suspect that your glucose levels are outside of the normal range, be sure to consult with your doctor immediately. That way, your physician will be able to make the right diagnosis regarding your condition and will thus be able to provide a treatment program in order to remedy the problem.
Informational video on glucose levels and Diabetes from “The Doctors”


