hypoglycemia

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What’s an Ideal Blood Sugar Level?

Continuous glucose monitoring

Continuous glucose monitoring

You want your blood sugar level to be as close as possible to that of someone who does not have diabetes or any other condition that affects blood sugar levels. Your doctor should tell you what your target blood sugar level is, and what you should do if your blood sugar falls outside a given range.

As a guide, someone with Type 2 diabetes should have a blood glucose level of 4-7mmol/l before meals, and less than 8.5mmol/l two hours after a meal. Pregnant women should have a fasting blood glucose level below 5.3mmol/l. The measurement mmol/l stands for millimoles per litre, which measures the concentration of a substance in a liquid.

How to Check Your Blood Sugar Level

Blood sugar levels are checked by measuring a small sample of blood. There are two ways to test your blood sugar levels: continuous glucose monitoring (CGM) or using a blood glucose meter.

Continuous glucose monitoring uses a small device worn under the skin. It measures blood sugar every few minutes and transmits the data to a display. You may be able to see your results in real time, or you may have to download them to see your historical numbers. A real-time CGM will alert you of a precipitous spike or decline in your blood sugar level.

CGM allows you to continuously track your blood sugar levels, even during the night. You can see when your level is starting to go up, so you can take action sooner and possibly prevent a spike. CGM will alert you to a spike even at a time when you don’t typically test. If you use insulin, you may be able to tailor your dosing to keep your sugar more level over the course of the day.

Using a blood glucose meter is a more traditional way to test your blood sugar, and some people prefer it to CGM. There are many different meters on the market, so consult with your doctor about which meter is right for you. Be sure you understand how to operate the meter correctly, as incorrect operation can provide incorrect results.

Understanding what blood sugar levels are, what your target level is, and how to read your level is critical to managing your diabetes or hypoglycemia.

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Diabetes – What is Continuous Glucose Monitoring?

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What is Continuous Glucose Monitoring?

Continuous glucose monitoring (CGM) is a method of monitoring blood glucose levels through the use of a thin wire sensor placed just under the skin, which samples glucose levels every few minutes throughout the day. The information is transmitted to a device that enables the user to view the information in real time. The data is useful for individuals with diabetes who need to constantly monitor glucose readings in order to prevent dangerous highs or lows. CGM data is also stored for later upload to a computer to help evaluate trends and make treatment optimization.

Why Is It Important To Monitor Blood Glucose Levels?

Many people with diabetes may not have noticeable symptoms until their blood glucose levels are either too high or too low. Hyperglycemia occurs when blood glucose levels are too high. If left untreated, this can lead to more serious complications, such as ketoacidosis.

Alternatively, hypoglycemia occurs when blood glucose levels are too low. If hypoglycemia is left untreated, the individual may experience a seizure or lose consciousness. Blood glucose levels must be controlled in order to avoid serious complications of diabetes.

Monitoring Blood Glucose Levels With a Standard Blood Glucose Meter

The most traditional method of checking blood glucose levels is through the use of a small lancing device to prick the tip of the finger to obtain a drop of blood. The blood sample is inserted into a blood glucose meter, which then measures glucose levels. These meters provide a single data point in time, and are effective for many individuals with diabetes when used several times per day, including before and after meals. For individuals who may need to test their glucose levels more often, CGM may offer an easier and more effective solution than finger sticks alone.

Monitoring Blood Glucose Levels with a CGM

Continuous glucose monitoring is a blood glucose monitoring method that can provide more than 250 readings per day. Minimal finger-stick readings from a standard blood glucose monitor are still required to double check the CGM device accuracy.

All of these readings together provide a pattern of blood glucose levels that may identify trends. Healthcare providers can use these trends to understand fluctuating glucose levels and how they relate to:

●  The kinds of food a patient eats

●  The types of activity they do

●  Medications and dosages

Trends may also help reveal:

●  Fluctuations in glucose levels overnight, which are often undetected

●  Blood glucose spikes early in the morning

This information enables healthcare providers to understand the effectiveness of an individual’s current treatment plan, and to make adjustments when needed.

Making Continuous Glucose Monitoring More Convenient

A variety of insulin pumps now integrate with CGM systems, helping reduce the number of devices that have to be carried.  Newer models even have bright, color touchscreens like smartphones, making them simple to learn and use.

How Does Continuous Glucose Monitoring Work?

Continuous glucose monitoring uses a sensor that is placed under the skin of the abdomen for up to 7 days. The sensor reads the amount of glucose in the surrounding fluid using an enzyme called glucose oxidase, the same technology used for testing strips.

When glucose in the surrounding fluid interacts with glucose oxidase, the enzyme converts the glucose into hydrogen peroxide. The hydrogen peroxide reacts with platinum inside the sensor that then sends a signal to a transmitter. This signal is converted into a glucose reading.

Who Can Use Continuous Glucose Monitoring?

Individuals with diabetes who may benefit from the use of continuous glucose monitoring include those who:

●  Have unexplained extreme highs or lows in glucose levels

●  Have a diagnosis of gestational diabetes

●  Have consistent high or low blood glucose levels

●  Are currently using an insulin pump

Speak With Your Healthcare Provider

Continuous glucose monitoring systems may require extra training and practice to use the device properly. Speak with your healthcare provider and your diabetes management team to learn more about continuous glucose monitoring and to determine whether CGM would be an effective addition to your current diabetes management plan.

Resources:

http://www.niddk.nih.gov/health-information/health-topics/Diabetes/continuous-glucose-monitoring/Pages/index.aspx

http://www.webmd.com/diabetes/guide/continuous-glucose-monitoring

http://www.joslin.org/info/the_facts_about_continuous_glucose_monitoring.html

http://www.diabetes.org/living-with-diabetes/treatment-and-care/blood-glucose-control/checking-your-blood-glucose.html?referrer=https://www.google.com.mx/

http://www.brunet.ca/en/advices/the-importance-of-monitoring-blood-glucose-levels.html

http://www.diabetes.org/living-with-diabetes/treatment-and-care/blood-glucose-control/hyperglycemia.html?referrer=https://www.google.com.mx/

http://www.diabetes.org/living-with-diabetes/treatment-and-care/blood-glucose-control/hypoglycemia-low-blood.html

http://www.diabetesforecast.org/2014/05-may/anatomy-of-a-cgm-sensor.html?referrer=https://www.google.com.mx/

http://www.fauquierhealth.org/diabetes.diabetes_continuous_glucose_monitoring_right_for_me