Meter Use For Hypoglycemia
Although the apparent value of immediate measurement of blood glucose might seem to be higher for hypoglycemia than hyperglycemia, meters have been less useful. The primary problems are precision and ratio of false positive and negative results. An imprecision of ±15% is less of a problem for high glucose levels than low. There is little difference in the management of a glucose of 200 mg/dl compared with 260 , but a ±15% error margin at a low glucose concentration brings greater ambiguity with regards to glucose management.
The imprecision is compounded by the relative likelihoods of false positives and negatives in populations with diabetes and those without. People with type 1 diabetes usually have a wider range of glucose levels, and glucose peaks above normal, often ranging from 40 to 500 mg/dl , and when a meter reading of 50 or 70 is accompanied by their usual hypoglycemic symptoms, there is little uncertainty about the reading representing a “true positive” and little harm done if it is a “false positive.” However, the incidence of hypoglycemia unawareness, hypoglycemia-associated autonomic failure and faulty counterregulatory response to hypoglycemia make the need for greater reliability at low levels particularly urgent in patients with type 1 diabetes mellitus, while this is seldom an issue in the more common form of the disease, type 2 diabetes mellitus.
Prepare Your Lancing Device
A lancing device is used in combination with a lancet to prick the test site, causing a blood drop to form. Finger stick devices and lancets are intended for single-person use the CDC warns against sharing lancing devices due to the risk of transmitting bloodborne pathogens.
Some lancing devices also have a depth selection dial, which can be adjusted to the most comfortable setting that can produce a blood drop.
Tip: Using a new lancet and smaller needle size may help reduce pain. The smaller the gauge number, the larger the needle will be.
Research Design And Methods
Capillary glucose concentrations were measured in two consecutive drops of blood in the following circumstances in 123 patients with diabetes: without washing hands, after exposing the hands to fruit, after washing the fruit-exposed hands, and during application of different amounts of external pressure around the finger. The results were compared with control measurements.
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Erratic Blood Glucose Levels
Stress i definitely a factor impacting the results during the run-in period for the disease to develop into a steady state of T1DM. In patients, gluconeogenesis may contribute as much as 60-70% of the glucose handled by their bodies during 24 hours. Hence, stress and gluconeogenesis should be kept to a minimum. Whenever glocose levels alter rapidly, both insulin and stress hormones try to stabilize blood glucose levels as rapid as possible. Hence, there will be “overshoots” in both directions, bringing about large undulations in blood glucose levels. Another method to evaluate the loss of beta-cell function would be to administer glucagon and analyse C-peptide in plasma some 4-8 min thereafter, as a measure of total beta-cell residual activity. This is done to evaluate anti-autoimmune therapy given to patients with T2DM helping the patients to dose both rapidly acting insulin and depot insulin of insulin secretion. The results with C-peptide is very consistent, giving good statistics for small populations. Relying on blood glucose alone and/or glucose intolerance analysis does not yield statistically valid information unless the T1DM is manifest and that ALL animals have lost some 80-85% of their beta-cells. I feel that average values of random blood glucose levels several times a day is much more reliable as a parameter to see when the animals reach a steady state levels consistent with T1DM.Continue reading > >
How To Use A Blood Sugar Meter
There are different kinds of meters, but most of them work the same way. Ask your health care team to show you the benefits of each. In addition to you, have someone else learn how to use your meter in case youre sick and cant check your blood sugar yourself.
Below are tips for how to use a blood sugar meter.
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The Contour Diabetes App
The Contour Diabetes app works with your Contour Next One blood glucose meter. It lets you make notes, set reminders, see your results in a graph, and share your reports. If you want to use the app, you can download it from the Apple App Store® or Google Play store.
You do not need to download the Contour Diabetes app if you do not want to. The Contour Next One blood glucose meter works without the app.
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What Is A Finger Stick Blood Test
Blood pumping throughout your body transports a variety of essential nutrients your cells need, like oxygen and glucose. A finger stick blood test is an easy way to measure the amount of a certain substances in your blood, by making a small prick into your fingertip and collecting a blood sample into a specially designed test strip or into a thin tube for laboratory testing. These convenient, easy tests only require a small amount of blood.
Depending on the specific test being performed, a finger stick blood test can be used to measure glucose, hemoglobin A1C, ketone, lactate levels, and more.
Differences In Bg Readings 30 Seconds Apart
Vivid Lily said:Data Dame! Hi – I use the Freestyle Mini and it’s accurate-I’ve compared it with the hospital and Diabetic Clinics meters and it’s within a couple of points. I use the one-touch as a backup and I too have found its not as accurate. Where I live there free with l00 test strips – so I change mine every few years. I think 5 years is too long. Try a different one – Take care – Suzy
DataDame said:Update: Spike, I did try testing back-to-back with the same drop of blood and the readings were 16 points apart. Maybe that’s an acceptable variance — I’m still learning about this side of things.)
DataDame said:This going to be a goofy question, but here goes anyway. Those of you who have talked about checking your meter against the lab…: I’m presuming you test at the doctor’s office at the same time they take blood for the a1c…? Or are you testing with your own meter and whatever meter they have there at the doctor’s office?
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Is Diathrive’s Glucose Meter Accuracy As Good As Other Meters
The answer is yes. Actually, its among the most accurate meters that are FDA-approved and available on the market, even when compared to meters from the top pharmaceutical giants.
At only $10 for the actual glucose meter and 16 cents per strip — all without a prescription, health insurance, or shipping costs — Diathrives glucose meter is also the most affordable on the market.
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How Does A Glucose Meter Work
To understand why a meter could give differing readings, you first have to understand how they work. The testing strip contains an enzyme that interacts with the glucose in your blood. The mixture generates electrons, which are then converted to an electrical current. The current is transferred from the strip to the meter, which is programmed to read the electrical current as the final numeric value.
The variables involved from the manufacture of the enzyme to the actual testing procedure and the test subject are immense. In earlier generations meters had to be coded, or the manufacturer sent a coding chip with each box of strips to alter the formula to match the slight variations in each batch of strips. Today most strips are coded so the end user is unaware that their meter is calibrating itself to each new batch of strips used.
Blood Testing With Meters Using Test Strips
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There are several key characteristics of glucose meters which may differ from model to model:
- Size: The average size is now approximately the size of the palm of the hand, although hospital meters can be the size of a remote control. They are battery-powered.
- Test strips: A consumable element containing chemicals that react with glucose in the drop of blood is used for each measurement. For some models this element is a plastic test strip with a small spot impregnated with glucose oxidase and other components. Each strip is used once and then discarded. Instead of strips, some models use discs, drums, or cartridges that contain the consumable material for multiple tests.
| Table of blood glucose units of measurement by country |
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| This section needs to be . Please help update this article to reflect recent events or newly available information. |
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Get Your Lancing Device Ready
Figure 4. Twist the white band to the right
Pull the endcap straight off .
Figure 5. Pull the endcap straight off
Figure 6. Push the lancet into your lancing device
Figure 7. Pull the tab off the lancet
Figure 8. Put the endcap back on your lancing device
Twist the white band to the left to lock the endcap on .
Figure 9. Twist the white band to the left
Figure 10. Set the puncture depth
Your lancing device is now ready. Set it down. Pick up your blood glucose meter and test strip.
Is The Same Meter Consistent In Its Variance
Todays typical glucose meters can produce two different blood sugar levels within even 30 seconds of each other due to variance.
Sometimes, you may find that testing your blood sugar twice in a row only seconds or minutes apart results in fairly similar results — and other times, with the exact same meter, you could get readings that are different by 20 or 30 points if your blood sugar is high.
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What Is Your Normal Blood Sugar
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Monitoring Your Blood Sugar
Regular blood sugar monitoring is the most important thing you can do to manage type 1 or type 2 diabetes. Youll be able to see what makes your numbers go up or down, such as eating different foods, taking your medicine, or being physically active. With this information, you can work with your health care team to make decisions about your best diabetes care plan. These decisions can help delay or prevent diabetes complications such as heart attack, stroke, kidney disease, blindness, and amputation. Your doctor will tell you when and how often to check your blood sugar levels.
Most blood sugar meters allow you to save your results and you can use an app on your cell phone to track your levels. If you dont have a smart phone, keep a written daily record like the one in the photo. You should bring your meter, phone, or paper record with you each time you visit your health care provider.
Sometimes having high blood sugar can feel like a test you didnt pass. But numbers are just numbers. Think of them instead as information. Did a certain food or activity make your levels go up or down? Armed with that knowledge, you can make adjustments and get closer to your target range more often.
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Enzyme Vulnerability & Consistency
Enzyme vulnerability refers to several variables and environmental issues that can be inconsistent when youre checking your blood sugar. Some you have control over, others you dont.
For instance, when a test strip is created in the manufacturing plant, a reactive enzyme is sprayed across the inner page of the test strip, then other details of the strip technology are added. When your blood is applied to the strip, it reacts with that enzyme as a key part of producing a blood sugar result. If the test strip material wasnt covered thoroughly in the enzyme spray, it can affect the accuracy of your results.
Other environmental variables include things like how the strips are stored, the conditions they endure during shipping, whether they are kept in an extremely hot and humid area versus cold and dry, and so on.
While the manufacturers of test strips generally have highly controlled storage environments for their product, they cant control these details once the product ships and shows up at your door or at the pharmacy.
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