Fasting For A Blood Draw

Share on pinterest new research explains why fasting before a blood test may not be such a good idea for people with diabetes. People with diabetes tend to have higher levels of low density. Even so the idea of not eating or drinking even for a small amount of time can seem daunting.

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If at any point you re unsure if fasting is required contact your doctor.

Fasting for a blood draw. The procedure for drawing blood called venipuncture is simple. As part of a routine physical examination your health care provider may prescribe blood work to assess your physical condition. Fasting blood glucose measures the amount of glucose in your blood to test for diabetes or prediabetes.

They will also wrap an elastic band around your upper arm before inserting the needle this helps your veins to pop out a bit. Fasting for 8 12 hours helps ensure that blood test results are free from these variables making your test results as accurate as possible. Fasting before a test means that you are not supposed to eat or even drink water for about 8 12 hours before your blood test.

A lab assistant will clean the puncture site insert a needle and draw some blood from a vein. You should not eat or drink anything for at least 8 10 hours before having this test. In most cases your blood will be drawn by a nurse or a phlebotomist a person specially trained to draw blood.

Your physician may advise you some hours of fasting before calling you in to draw blood. Deborah weatherspoon phd rn crna answers represent the opinions of our medical experts. Checking your blood for accurate nutrient levels and blood cell counts may sometimes require you to fast for a brief period usually overnight before a practitioner draws your blood in the laboratory.

If you re prepping for fasting blood work coffee is off the table. Fasting blood glucose test. You are also not allowed to smoke or chew gum.

First the site of the blood draw is cleaned with alcohol or another cleanser which will clean the area and remove germs. Fasting is not always necessary before a blood test but when it is it is only for a short time. Some common tests that may require fasting include.

That could cause your appointment to be rescheduled. Don t wait until the day of your blood draw to ask if you should fast. And if fasting is an absolute must for meaningful results they should stop and reschedule your blood draw.

Fasting before a blood draw means you don t eat or drink anything except water. At least 8 hours lipid profile is used to check the level of.

Source : pinterest.com