What is a complete blood count (CBC)?
A complete blood count, or CBC, is a common blood test that checks the number and types of cells in your blood. It measures red blood cells, white blood cells, hemoglobin, hematocrit, and platelets. This test helps doctors spot signs of infections, anemia, immune problems, and other health issues.
Who is a candidate for a CBC?
You may need a CBC if you:
- Feel tired, weak, or dizzy
- Have signs of infection like fever or chills
- Are bruising or bleeding more easily than usual
- Have a chronic illness like kidney disease or cancer
- Are going in for surgery or a routine checkup
What to expect during a CBC
A healthcare provider will draw a small blood sample from a vein in your arm, usually in a doctor’s office or lab. The process only takes a few minutes. No special prep is needed unless your doctor includes other tests.
What are the risks for a CBC?
The risks are very low. You might feel a small pinch or see a little bruising where the needle went in, but these go away quickly.
What does recovery from a CBC entail?
You don’t need to recover from a CBC. You can eat, drink, and return to your normal activities right after the test. Your doctor will go over your results and explain if anything needs follow-up.