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Fasting Glucose Test

What Is A Normal Blood Sugar Level?

What Is A Normal Blood Sugar Level?

The aim of diabetes treatment is to bring blood sugar (“glucose”) as close to normal as possible. What is a normal blood sugar level? And how can you achieve normal blood sugar? First, what is the difference between “sugar” and “glucose”? Sugar is the general name for sweet carbohydrates that dissolve in water. “Carbohydrate” means a food made only of carbon, oxygen, and hydrogen. There are various different kinds of sugars. The one our body uses most is called “glucose.” Other sugars we eat, like fructose from fruit or lactose from milk, are converted into glucose in our bodies. Then we can use them for energy. Our bodies also break down starches, which are sugars stuck together, into glucose. When people talk about “blood sugar,” they mean “blood glucose.” The two terms mean the same thing. In the U.S., blood sugar is normally measured in milligrams of glucose per deciliter of blood (mg/dl). A milligram is very little, about 0.00018 of a teaspoon. A deciliter is about 3 1/3 ounces. In Canada and the United Kingdom, blood sugar is reported in millimoles/liter (mmol/L). You can convert Canadian or British glucose levels to American numbers if you multiply them by 18. This is useful to know if you’re reading comments or studies from England or Canada. If someone reports that their fasting blood glucose was 7, you can multiply that by 18 and get their U.S. glucose level of 126 mg/dl. What are normal glucose numbers? They vary throughout the day. (Click here for a blood sugar chart.) For someone without diabetes, a fasting blood sugar on awakening should be under 100 mg/dl. Before-meal normal sugars are 70–99 mg/dl. “Postprandial” sugars taken two hours after meals should be less than 140 mg/dl. Those are the normal numbers for someone w Continue reading >>

Can You Eat Before Going For A Gestational Diabetes Test?

Can You Eat Before Going For A Gestational Diabetes Test?

I am blown away by the posts saying you shouldn't smoke before your gestational diabetes test. IF YOU'RE PREGNANT YOU SHOULDN'T BE SMOKING AT ALL PEOPLE!!!!!!! The one hour glucose test you really dont need to fast because it is not a fasting test. After you drink the glucola you should not have anything to eat or drink, no gum,candy or mints. you also should not go smoke. Cigerattes have glucose in them too. The three hour test you need to fast for 12-14 hours prior because that test is fasting the lab needs a base fasting glucose to compare the rest of the blood after you drink the glucola. With that test you should still have nothing in between the blood draws, even though the taste is very bad. My Dr. said to eat normal, just try to watch your sugar intake the day of the test. You are not supposed to fast. The idea of the test is to see how your body handles the sugar on your normal diet. If you fast, then it's like you are cheating the test. I would rather know for sure that my body is handling the foods I eat properly or if I need to change my diet. Wish me luck...I have my 1 hour test today! OKAY- so for the ONE HOUR glucose test, I definitely recommend fasting. I ate an hour before my one hour test, and my levels came back high. So, I was sent to take the three hour test (which SUCKS!!!! because you have to fast and THEN wait another 3 hours for the test, and you get stuck 3 times which really sucks). Well, my levels came back great that time-because I fasted. I told the nurses who did the three hour that I had not fasted for the one hour, and they said if I had fasted I probably wouldn't have had to do the three hour. So just to save yourself the trouble, I would fast before the first test! I wasn't told not to eat anything before my regular glucose test, so I Continue reading >>

Blood Sugar Test

Blood Sugar Test

A blood glucose test measures the amount of a sugar called glucose in a sample of your blood. Glucose is a major source of energy for most cells of the body, including brain cells. Carbohydrates are found in fruit, cereal, bread, pasta, and rice. They are quickly turned into glucose in your body. This raises your blood glucose level. Hormones made in the body help control blood glucose level. Continue reading >>

Diagnosing Diabetes

Diagnosing Diabetes

In diagnosing diabetes, physicians primarily depend upon the results of specific glucose tests. However, test results are just part of the information that goes into the diagnosis of type 1 or type 2 diabetes. Doctors also take into account your physical exam, presence or absence of symptoms, and medical history. Some people who are significantly ill will have transient problems with elevated blood sugars, which will then return to normal after the illness has resolved. Also, some medications may alter your blood glucose levels (most commonly steroids and certain diuretics, such as water pills). The 2 main tests used to measure the presence of blood sugar problems are the direct measurement of glucose levels in the blood during an overnight fast and measurement of the body's ability to appropriately handle the excess sugar presented after drinking a high glucose drink. Fasting Blood Glucose (Blood Sugar) Level A value above 126 mg/dL on at least 2 occasions typically means a person has diabetes. The Oral Glucose Tolerance Test An oral glucose tolerance test is one that can be performed in a doctor's office or a lab. The person being tested starts the test in a fasting state (having no food or drink except water for at least 10 hours but not greater than 16 hours). An initial blood sugar is drawn and then the person is given a "glucola" bottle with a high amount of sugar in it (75 grams of glucose or 100 grams for pregnant women). The person then has their blood tested again 30 minutes, 1 hour, 2 hours, and 3 hours after drinking the high glucose drink. For the test to give reliable results, you must be in good health (not have any other illnesses, not even a cold). Also, you should be normally active (for example, not lying down or confined to a bed like a patient in a Continue reading >>

Blood Sugar Tests

Blood Sugar Tests

A test that measures blood sugar levels. Elevated levels are associated with diabetes and insulin resistance, in which the body cannot properly handle sugar (e.g. obesity). Goal values: Less than 100 mg/dL = normal Between 110–125 mg/dL = impaired fasting glucose (i.e., prediabetes) Greater than 126 mg/dL on two or more samples = diabetes Preparation This test requires a 12-hour fast. You should wait to eat and/or take a hypoglycemic agent (insulin or oral medication) until after test has been drawn, unless told otherwise. Eating and digesting foods called carbohydrates forms glucose (blood sugar). Glucose is needed by your body to provide energy to carry out your normal activities. Insulin is needed by the body to allow glucose to go into the cells and be used as energy. Without insulin, the levels of glucose in the blood will rise. Diabetes is a disease that occurs when either the pancreas (an organ in your body) is not able to produce insulin or the pancreas makes insulin, but it does not work as it should. Fasting blood sugar is a part of diabetic evaluation and management. An FBS greater than 126 mg/dL on more than one occasion usually indicates diabetes. Glycosylated Hemoglobin or Hemoglobin A1C (HbA1C) Reflects average blood sugar levels over the preceding 90-day period. Elevated levels are associated with prediabetes and diabetes. Individuals with diabetes have an increased risk of a cardiac event. A diabetic person's risk for heart attack is the same as a non-diabetic person, who has experienced one heart attack, having a second heart attack. Aggressive global preventive risk reduction efforts, such as lower LDL targets, diet, exercise and blood pressure control, are recommended. Goal values (per American Diabetes Association guidelines): A range of 5.7-6.4 p Continue reading >>

What Is The Fasting Blood Sugar Test?

What Is The Fasting Blood Sugar Test?

The fasting blood sugar test (FBS) measures the amount of glucose (sugar) in your blood when you have not had anything to eat or drink for several hours. This test is also called a fasting plasma glucose test (FBS). Why is this test done? The most common use of this test is to check for diabetes. How do I prepare for this test? The simplest way to check for diabetes is to check your blood sugar before you've had anything to eat or drink in the morning. In most cases you will fast overnight, eating nothing and drinking nothing but water after your evening meal and in the morning before your blood is drawn. If you do shift work, it's best to have your blood checked after your usual sleeping time (after at least 6 hours of sleep) and before you start your active day. When you wake up, you should have nothing to eat and nothing to drink except water before your blood is drawn. You may need to avoid taking certain medicines before the test because they might affect the test result. Make sure your healthcare provider knows about any medicines, herbs, or supplements that you are taking. Don't stop any of your regular medicines without first consulting with your healthcare provider. Talk to your healthcare provider if you have any questions. How is the test done? Your healthcare provider may poke your finger with a lancet and fill a small tube with the blood. Or a small amount of blood may be taken from your arm with a needle. The blood is sent to a lab. Having this test will take just a few minutes. Ask your healthcare provider when and how you will get the result of your test. What does the test result mean? The normal fasting blood sugar range in most labs is 70 to 99 milligrams per deciliter (3.9 to 5.5 millimoles per liter). A fasting blood sugar level of 100 to 125 mg/dL Continue reading >>

Let's Start At The Beginning

Let's Start At The Beginning

You have diabetes. Now what? You are not alone. According to the International Diabetes Federation, it was estimated in 2015 that one in 11 adults had diabetes, and one in two was not even diagnosed. A diabetes diagnosis is an important first step in getting your disease under control. Learning that you have diabetes can come as a shock and be overwhelming. At OneTouch.com, we are here to help you. This site is designed to help you learn more about the disease: you'll find information on the importance of blood glucose monitoring and taking your medicine when it's prescribed – be it pills or injectables, including insulin. We'll explain the basics of eating healthy and being physically active. We'll show you some things to watch out for, and help you learn how to take care of yourself to help reduce the risk of complications. In short, we'll be here for you through your journey with diabetes, step by step. Yes, your life is about to change, but when you successfully manage your diabetes you improve your health in the short term and lower your chances of long-term health risks: you can live a longer and healthier life. Don't expect perfection. It’s not a race or competition. Just commit yourself to doing your personal best. Tell yourself that you're worth it. We'll be with you every step of the way. * IDF Diabetes Atlas (7th Ed.) (2015). Brussels, Belgium: International Diabetes Federation. Continue reading >>

Performance Of An A1c And Fasting Capillary Blood Glucose Test For Screening Newly Diagnosed Diabetes And Pre-diabetes Defined By An Oral Glucose Tolerance Test In Qingdao, China

Performance Of An A1c And Fasting Capillary Blood Glucose Test For Screening Newly Diagnosed Diabetes And Pre-diabetes Defined By An Oral Glucose Tolerance Test In Qingdao, China

OBJECTIVE The study's goal was to evaluate the performance of A1C and fasting capillary blood glucose (FCG) tests as mass screening tools for diabetes and pre-diabetes, as determined by the standard oral glucose tolerance test (OGTT). RESEARCH DESIGN AND METHODS Data from 2,332 individuals aged 35–74 years who participated in a population-based cross-sectional diabetes survey in Qingdao, China, were analyzed. A 2-h 75-g OGTT was used to diagnose diabetes. The performance of A1C and FCG was evaluated against the results of the OGTTs by using receiver operating characteristic curve (ROC) analysis. RESULTS The prevalence of newly diagnosed diabetes and pre-diabetes (impaired fasting glucose and/or impaired glucose tolerance) was 11.9 and 29.5%, respectively. For subjects with newly diagnosed diabetes, the area under the ROC curve was 0.67 for A1C and 0.77 for FCG (P < 0.01) in men and 0.67 and 0.75 (P < 0.01) in women, whereas for pre-diabetes, these values were 0.47 and 0.64 (P < 0.001) in men and 0.51 and 0.65 (P < 0.001) in women. At the optimal A1C cutoff point of ≥5.6% for newly diagnosed diabetes, sensitivities (specificities) were 64.4% (61.6%) for men and 62.3% (63.3%) for women. CONCLUSIONS As a screening tool for newly diagnosed diabetes and pre-diabetes, the FCG measurement performed better than A1C in this general Chinese population. Type 2 diabetes has become a serious public health threat worldwide, and it leads to increased premature mortality and morbidity including blindness, renal failure, amputation, and cardiovascular disease. Diabetes and its complications may occur several years before a clinical diagnosis is made. Mass screening for diabetes can lead to an early diagnosis and timely treatment or intervention, which have been shown to reduce diabe Continue reading >>

Diagnosing Impaired Glucose Tolerance (igt)

Diagnosing Impaired Glucose Tolerance (igt)

People with IGT have blood glucose levels that are higher than normal but not high enough to say they have diabetes. This condition is diagnosed using the oral glucose tolerance test (OGTT). After a fast of 8 to12 hours, a person's blood glucose is measured before and 2 hours after drinking a glucose-containing solution. In normal glucose tolerance, blood glucose rises no higher than 140 mg/dl 2 hours after the drink. In impaired glucose tolerance (IGT), the 2-hour blood glucose is between 140 and 199 mg/dl. If the 2-hour blood glucose rises to 200 mg/dl or above, a person has diabetes. How does the fasting blood glucose test differ from the oral glucose tolerance test? In the fasting blood glucose test, a person's blood glucose is measured after a fast of 8 to 12 hours: A person with normal blood glucose has a blood glucose level below 100. A person with impaired fasting glucose has a blood glucose level between 100 and 125 mg/dl. If the fasting blood glucose level rises to126 mg/dl or above, a person has diabetes. The OGTT includes measures of blood glucose levels after a fast and after a glucose challenge. In 1997, an American Diabetes Association (ADA) expert panel recommended that doctors use the fasting blood glucose test to screen their patients for diabetes because the test is easier and less costly than the OGTT. Though the fasting glucose test detects most diabetes cases, the OGTT is more sensitive in identifying people with blood glucose problems that may first appear only after a glucose challenge. For a person with IGT, what is the risk of developing type 2 diabetes? As few as 1 to as many as 10 of every 100 persons with IGT will develop diabetes per year. The risk of getting diabetes rises as people become more overweight and more sedentary, have a stronge Continue reading >>

Preparing For A Test

Preparing For A Test

What to know about fasting before your lab test With certain blood tests, you may be instructed to fast for up to eight hours before your appointment. Fasting before a blood draw means you don’t eat or drink anything except water. Don’t wait until the day of your blood draw to ask if you should fast. That could cause your appointment to be rescheduled. If at any point you’re unsure if fasting is required, contact your doctor. Why do I have to fast before certain lab tests? Nutrients and ingredients in the food and beverages you consume are absorbed into your bloodstream and could impact factors measured by certain tests. Fasting improves the accuracy of those tests. Why is water okay to drink while I’m fasting? Water hydrates your veins. Hydrated veins are easier to find. And that means easier to draw from. Drink plenty of water before having any blood test. How long do I have to fast for a blood test? It depends on the test. Fasting for a lab test typically lasts eight hours. Your doctor should give you any special instructions related to your tests, including fasting requirements. Always follow her or his instructions. What types of blood tests require fasting? Glucose testing that checks blood-sugar levels and tests that determine your cholesterol, triglycerides, and high-density lipoprotein (HDL) levels usually require fasting. Other lab tests may require fasting, which is why you should ask your doctor. If you think fasting might be a problem, schedule your appointment for the early morning and bring a snack for after the appointment. Can I eat before other types of blood tests? If it’s a test that does not require fasting then, yes, please eat something before having your blood drawn. Can I continue taking medications before a blood test? Unless your doc Continue reading >>

Fasting Blood Glucose Test

Fasting Blood Glucose Test

A fasting blood glucose test — also called a fasting plasma glucose, or FPG test — measures blood glucose levels after you've gone without food for at least eight hours. It's reliable, and the results aren't affected by your age or the amount of physical activity you do. Many doctors prefer the fasting plasma glucose test because it's easy, fast and inexpensive. Test Procedure To prepare, you must not eat for at least eight hours before the test. The next morning, a healthcare provider takes a single sample of your blood and sends it to a lab for analysis. Fasting blood glucose tests done in the morning, rather than the afternoon, appear to be more accurate in diagnosing diabetes. So be sure to schedule your test for first thing in the morning. Results Your doctor will compare your results against the normal levels for fasting glucose. Normal blood glucose levels are less than 100 mg/dL. (Read as "100 milligrams of glucose for each deciliter of blood." A deciliter is 1/10th of a liter.) Written by award-winning health writer Bobbie Hasselbring Reviewed by Beth Seltzer, MD Last updated June 2008 The Moderated Media - Unbiased presentation of today's breaking news, latest news headlines, analysis, and opinion. View what everyone is talking about from the fastest growing news site on the web. Continue reading >>

Diabetes Tests & Diagnosis

Diabetes Tests & Diagnosis

Your health care professional can diagnose diabetes, prediabetes, and gestational diabetes through blood tests. The blood tests show if your blood glucose, also called blood sugar, is too high. Do not try to diagnose yourself if you think you might have diabetes. Testing equipment that you can buy over the counter, such as a blood glucose meter, cannot diagnose diabetes. Who should be tested for diabetes? Anyone who has symptoms of diabetes should be tested for the disease. Some people will not have any symptoms but may have risk factors for diabetes and need to be tested. Testing allows health care professionals to find diabetes sooner and work with their patients to manage diabetes and prevent complications. Testing also allows health care professionals to find prediabetes. Making lifestyle changes to lose a modest amount of weight if you are overweight may help you delay or prevent type 2 diabetes. Type 1 diabetes Most often, testing for occurs in people with diabetes symptoms. Doctors usually diagnose type 1 diabetes in children and young adults. Because type 1 diabetes can run in families, a study called TrialNet offers free testing to family members of people with the disease, even if they don’t have symptoms. Type 2 diabetes Experts recommend routine testing for type 2 diabetes if you are age 45 or older are between the ages of 19 and 44, are overweight or obese, and have one or more other diabetes risk factors are a woman who had gestational diabetes1 Medicare covers the cost of diabetes tests for people with certain risk factors for diabetes. If you have Medicare, find out if you qualify for coverage . If you have different insurance, ask your insurance company if it covers diabetes tests. Though type 2 diabetes most often develops in adults, children also ca Continue reading >>

Why Are Fasting Blood Glucose Numbers High?

Why Are Fasting Blood Glucose Numbers High?

Stumped by high fasting blood glucose results? Join the club. "It just doesn't compute. When I snack before bed, my fastings are lower than when I limit my night nibbles," says Pete Hyatt, 59, PWD type 2. "It's logical for people to point the finger for high fasting blood sugar numbers at what they eat between dinner and bed, but surprisingly food isn't the lead villain," says Robert Chilton, M.D., a cardiologist and professor of medicine at the University of Texas Health Science Center at San Antonio. The true culprit is compromised hormonal control of blood glucose levels. The Essential Hormones During the years (up to a decade) that type 2 diabetes develops, the hormonal control of blood glucose breaks down. Four hormones are involved in glucose control: Insulin, made in the beta cells of the pancreas, helps the body use glucose from food by enabling glucose to move into the body's cells for energy. People with type 2 diabetes have slowly dwindling insulin reserves. Amylin, secreted from the beta cells, slows the release of glucose into the bloodstream after eating by slowing stomach-emptying and increasing the feeling of fullness. People with type 1 and type 2 diabetes are amylin-deficient. Incretins, a group of hormones secreted from the intestines that includes glucagon-like peptide 1 (GLP-1), enhance the body's release of insulin after eating. This in turn slows stomach-emptying, promotes fullness, delays the release of glucose into the bloodstream, and prevents the pancreas from releasing glucagon, putting less glucose into the blood. Glucagon, made in the alpha cells of the pancreas, breaks down glucose stored in the liver and muscles and releases it to provide energy when glucose from food isn't available. {C} How the Essential Hormones Work in the Body When d Continue reading >>

Blood Glucose

Blood Glucose

Test Overview A blood glucose test measures the amount of a type of sugar, called glucose, in your blood. Glucose comes from carbohydrate foods . It is the main source of energy used by the body. Insulin is a hormone that helps your body's cells use the glucose. Insulin is produced in the pancreas and released into the blood when the amount of glucose in the blood rises. Normally, your blood glucose levels increase slightly after you eat. This increase causes your pancreas to release insulin so that your blood glucose levels do not get too high. Blood glucose levels that remain high over time can damage your eyes, kidneys, nerves, and blood vessels. There are several different types of blood glucose tests. Fasting blood sugar (FBS). This test measures blood glucose after you have not eaten for at least 8 hours. It is often the first test done to check for prediabetes and diabetes . 2-hour postprandial blood sugar. This test measures blood glucose exactly 2 hours after you start eating a meal. This is not a test used to diagnose diabetes. This test is used to see if someone with diabetes is taking the right amount of insulin with meals. Random blood sugar (RBS). It measures blood glucose regardless of when you last ate. Several random measurements may be taken throughout the day. Random testing is useful because glucose levels in healthy people do not vary widely throughout the day. Blood glucose levels that vary widely may mean a problem. This test is also called a casual blood glucose test. Oral glucose tolerance test. This test is used to diagnose prediabetes and diabetes. An oral glucose tolerance test is a series of blood glucose measurements taken after you drink a sweet liquid that contains glucose. This test is commonly used to diagnose diabetes that occurs durin Continue reading >>

Diagnosis

Diagnosis

Print Symptoms of type 1 diabetes often appear suddenly and are often the reason for checking blood sugar levels. Because symptoms of other types of diabetes and prediabetes come on more gradually or may not be evident, the American Diabetes Association (ADA) has recommended screening guidelines. The ADA recommends that the following people be screened for diabetes: Anyone with a body mass index higher than 25, regardless of age, who has additional risk factors, such as high blood pressure, a sedentary lifestyle, a history of polycystic ovary syndrome, having delivered a baby who weighed more than 9 pounds, a history of diabetes in pregnancy, high cholesterol levels, a history of heart disease, and having a close relative with diabetes. Anyone older than age 45 is advised to receive an initial blood sugar screening, and then, if the results are normal, to be screened every three years thereafter. Tests for type 1 and type 2 diabetes and prediabetes Glycated hemoglobin (A1C) test. This blood test indicates your average blood sugar level for the past two to three months. It measures the percentage of blood sugar attached to hemoglobin, the oxygen-carrying protein in red blood cells. The higher your blood sugar levels, the more hemoglobin you'll have with sugar attached. An A1C level of 6.5 percent or higher on two separate tests indicates that you have diabetes. An A1C between 5.7 and 6.4 percent indicates prediabetes. Below 5.7 is considered normal. If the A1C test results aren't consistent, the test isn't available, or if you have certain conditions that can make the A1C test inaccurate — such as if you're pregnant or have an uncommon form of hemoglobin (known as a hemoglobin variant) — your doctor may use the following tests to diagnose diabetes: Random blood sugar Continue reading >>

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