do you need to fast for blood work for cholesterol?
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Generally you're required to fast, consuming no food or liquids other than water, for nine to 12 hours before the test. Some cholesterol tests don't require fasting, so follow your doctor's instructions.
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Gentle fasting. If possible, do not feed your pet for about 6 hours before your appointment. Fasting helps to clear the blood of lipemia, fat droplets that appear after eating. Lipemia can interfere with some blood tests and make the results difficult to interpret.
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You may need to test your blood several times a day. Generally, these times are fasting (first thing in the morning before you eat) and 2 hours after each meal. Occasionally, you may be asked to test more frequently during the day or at night.
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You usually need to fast for 8–12 hours before a test. Most tests that require fasting are scheduled for early in the morning.
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Yes – just because the emphasis on cholesterol in food is less – it does not mean that your blood cholesterol does not matter. If your blood cholesterol level is high and you are at risk for cardiovascular disease – it needs to be treated.
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Fasting is required for a period of 8-10 hours prior to the test. (No food or fluids such as tea, coffee or fruit juice.) You may have sips of water if you are thirsty. Due to the nature of the test, testing is generally done in the morning.
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You don't need to fast before all blood tests. Your doctor will tell you if you need to. These tests typically require fasting: Fasting blood glucose measures the amount of glucose (sugar) in your blood to test for diabetes or prediabetes.
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Common fasting blood tests a fasting blood glucose test (used to test for diabetes) – you fast for 8 to 10 hours before the test.
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How often and when should I test? You may need to test your blood several times a day. Generally, these times are fasting (first thing in the morning before you eat) and 2 hours after each meal. Occasionally, you may be asked to test more frequently during the day or at night.
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The truth is, your cholesterol can be tested without fasting. In the past, experts believed fasting ahead of time produces the most accurate results. This is because your low-density lipoproteins (LDL) — also known as “bad” cholesterol — may be affected by what you've recently eaten.
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Research shows that fasting can help lower blood pressure, reduce cholesterol, control diabetes and reduce weight. “Four of the major risks for heart disease are high blood pressure and cholesterol, diabetes and weight, so there's a secondary impact,” Dr.
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When fasting for blood tests, you may still drink water, plain coffee, or black tea. Take your regular medications unless you are specifically told to take them only with food.
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You don't need any special preparations for a calcium blood test or a basic metabolic panel. If your health care provider has ordered more tests on your blood sample, you may need to fast (not eat or drink) for several hours before the test.
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If a fasting glucose (FBS), LDL, or Triglycerides test is ordered for you do not eat anything 8 to 12 hours before coming into the laboratory to have blood samples collected. You may drink water and take any prescription medications, but nothing else by mouth. No coffee or tea.
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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.
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It is important that a person has not had anything to eat or drink other than water for 8 to 10 hours before a fasting blood glucose test. Fasting helps ensure that the blood test records an accurate measure of fasting blood sugar levels. The results help a doctor to diagnose or rule out diabetes.
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Common fasting blood tests Examples of blood tests that require you to fast include: a fasting blood glucose test (used to test for diabetes) – you fast for 8 to 10 hours before the test.