Before the test, sit for five minutes with your back supported and your feet flat on the ground. Rest your arm on a table at the level of your heart.
Wear short sleeves so your arm is exposed.
Go to the bathroom prior to the reading. A full bladder can change your blood pressure reading.
Get two readings, taken at least two minutes apart, and average the results.
Ask the doctor or nurse to tell you the blood pressure reading in numbers.