Skip to main content
Gravis Labs
4 questionsHeart Health

Blood Pressure Basics

Four questions on what the two numbers mean, how categories differ by region, and why one reading is never enough.

Every answer is followed by an explanation, right or wrong. There is no pass mark — this is here to explain the concepts, not to assess you.

Quiz progress0 / 4
Question 1 of 4

Question 1 of 4

What does the systolic (top) number represent?