What happens during a ketones in blood test?A health care professional 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.You may also be able to use an at-home kit to test for ketones in blood. While instructions may vary, your kit will include some kind of device for you to prick your finger. You will use this to collect a drop of blood for testing. Read the kit instructions carefully, and talk to your health care provider to make sure you collect and test your blood correctly.Your health care provider may order a ketones in urine test in addition to or instead of a ketones in blood test to check for diabetic ketoacidosis. He or she may also want to check your A1c levels and blood glucose levels to help monitor your diabetes.
