WHAT HAPPENS DURING A
BLOOD TEST?
Our lab professionals will take a sample of your blood. This is also called a blood draw. When a blood draw is taken from a vein, it’s known as venipuncture.
During venipuncture, our lab professionals, known as a phlebotomist, will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial. You may feel a little sting when the needle goes in or out. This usually takes less than five minutes.
Other ways our lab professionals can perform a blood test are:
-
A finger prick test. This test is done by pricking your fingertip to obtain a small amount of blood. Finger prick testing is often used for at-home test kits and rapid tests. Rapid tests are easy to use tests that provide very fast results and require little or no special equipment.
-
A heel stick test. This is most often done on newborns. During a heel stick test, our lab professionals will clean your baby’s heel with alcohol and poke the heel with a small needle. They will then collect a few drops of blood and put a bandage on the site.
-
Arterial blood test. This test is done to measure oxygen levels. Blood from arteries has higher levels of oxygen than blood from a vein. So for this test, blood is taken from an artery instead of a vein. You may feel a sharp pain when our lab professionals insert the needle into the artery to get the blood sample.