MPV Blood Test

MPV stands for mean platelet volume. Platelets (also called thrombocytes) are small blood cells that stick together to make blood clots that stop or slow bleeding when you have a cut or injury. Platelets are made in your bone marrow.

An MPV blood test measures the mean (average) size of your platelets. Looking at the size of platelets provides information about how well they're working. This test can help diagnose bleeding disorders and diseases of the bone marrow.

Why this test is done

Your health care provider may order an MPV blood test as part of a complete blood count (CBC).This is a test that measures many different parts of your blood, including platelets. It is often part of a routine checkup.

You may also need an MPV test if you have symptoms of a blood disorder that may involve having too many or too few platelets. These symptoms can include:

• Bleeding that takes a long time to stop, even from minor cuts
• Nosebleeds
• Bleeding from brushing your teeth
• Small red or purplish spots on the skin
• Bruising easily
• Abnormal vaginal bleeding (especially heavy menstrual periods)
• Feeling weak or dizzy
• Lasting headache and dizziness
• Pain and burning in the feet and hands

How to prepare

You don't need any special preparations for an MPV blood test. If your provider has ordered more tests on your blood sample, you may need to fast (not eat or drink) for several hours before the test. Your provider will let you know if there are any special instructions.

Sample type

Blood

Other names for this test

Mean Platelet Volume