![]() The band is then removed to restore circulation, and blood continues to flow into the vial. This causes the veins in your arm to fill with blood.Īfter the needle is inserted, a small amount of blood is collected into a vial or syringe. Blood is drawn from a vein, usually from your arm.īefore the needle is inserted, the puncture site is cleaned with antiseptic and an elastic band is wrapped around your upper arm. What you can expect During the procedureĪ cholesterol test is a blood test, usually done in the morning if you fast overnight. Some cholesterol tests don't require fasting, so follow your doctor's instructions. You're generally required to fast, consuming no food or liquids other than water, for nine to 12 hours before the test. You might have soreness or tenderness around the site where your blood is drawn. There's little risk in getting a cholesterol test. People undergoing treatment for high cholesterol require regular cholesterol testing to monitor the effectiveness of their treatments.
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