how long should i fast for a lipid test?
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However, if the test is drawn as part of a total lipid profile, it requires a 12-hour fast (no food or drink, except water). For the most accurate results, wait at least two months after a heart attack, surgery, infection, injury or pregnancy to check cholesterol levels.
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Basic or comprehensive metabolic tests: Tests for blood sugar, electrolyte balance, and kidney function. Typically, people will be asked to fast for 10 to 12 hours before having one of these tests.
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For this test you will need to fast for 8 hours before test. When you arrive at the lab or health care facility, you will: Have your blood tested. Drink a special liquid containing glucose.
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Your doctor may recommend fasting before having your cholesterol checked. If they say you should fast, they'll likely suggest that you avoid eating for 9 to 12 hours before your test.
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What was the point of fasting before having a cholesterol test? Not eating for eight to 12 hours before having blood drawn for a cholesterol test was thought to give a more accurate assessment of total cholesterol, harmful LDL cholesterol, protective HDL cholesterol, and triglycerides, a type of fat-carrying particle.
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If fasting is required, you should not have anything to eat or drink (with the exception of water) for 10–12 hours before your test. Unless advised by your doctor, you should take all regular medication.
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Requirements Prior to the Test 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 usually need to fast for 8–12 hours before a test. Most tests that require fasting are scheduled for early in the morning. That way, most of your fasting time will be overnight.
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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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Tell your doctor about any prescription or over-the-counter medications or supplements you're taking. You may need to fast (refrain from eating or drinking) for four hours before the test.
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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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With a fasting triglyceride test, a person is asked to fast for between 9 and 12 hours before having blood taken and tested. Non-fasting tests do not require a person to fast beforehand. For the last few years, researchers have been looking at the benefits of non-fasting triglyceride tests.
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A. No. You do not need to fast and you can test your blood any time of the day. It is best to collect the blood sample before eating or several hours after a meal.
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Lipid panel. Lipid panels measure the amount of cholesterol in the body. This includes high-density lipoprotein (HDL) and low-density lipoprotein (LDL). Your doctor should receive results from the lab within 24 hours.
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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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Do you need to fast? 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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For most tests, you will be told not to consume anything but water for eight hours leading up to the test. For a few tests, a 12-hour fast may be needed.