Sometimes you need a medical test to give your doctor more information about your health. These videos show what happens in 10 of the most common medical tests.
Getting a blood test usually takes less than a minute and gives doctors all kinds of clues about your health.
This test measures how strong your lungs are. It's as easy as blowing out birthday candles!
A CT scan takes pictures of what's going on inside your body - and it doesn't hurt.
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