How Long To Fast Before A Blood Test ?  

Fasting blood tests are performed to measure the glucose and cholesterol levels in the blood. The lipid panel reading, metabolic panel reading, triglyceride or HDL levels as well as cholesterol reading during fasting are recorded and hence, you should not consume food before performing this test in order to ensure accurate results.

It is advisable to fast for about 8 to 12 hours prior to giving the sample. Hence, fasting blood test is generally taken early in the morning, so that you sleep comfortably overnight during the fasting period.

In order to measure glucose levels, you need to fast for at least 8 hours and give the sample when you are relaxed. Hence, it is better to visit the lab immediately when you get up in the morning. Similarly, for cholesterol blood test, you need to fast for at least 12 hours in order to get accurate triglyceride levels.

Nowadays, you can find instant cholesterol tests in public places like health fairs and malls. Do not conclude your levels by these readings as medical experts still insist that it is important to fast before taking these tests.

You need to take simple precautions before giving your blood sample. Do not dehydrate yourself while fasting. You can drink water. However, avoid smoking, drinking alcohol or any other beverage during your fasting period.

Avoid taking diuretics and contraceptives the previous day. Consult your doctor if you take any regular medications and ask him specifically whether you need to avoid taking them during the fasting period or the day before giving your blood sample for testing.

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How Long To Fast Before A Blood Test ?




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