Blood Pressure Say: blud preh-shur Check your blood pressure! When you go to the doctor, a nurse might put a band around part of your arm and pump air into the band, blowing it up like a balloon. Your arm might feel a little squished, but don't worry - that's how a nurse checks your blood pressure. This test shows how hard your heart is pumping to move blood through your body. Blood pressure can be too high or too low, but yours is probably just right! Back to Articles Related Articles Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.