After measuring blood pressure you need to assess your numbers. Results may vary so it's best to perform 3 measurement in a row, with a 5 minute pause in between. A value of BP is expressed as 120/80 mmHg, where first number is systolic value and the second is diastolic value.
Assessing the values
After you measured your BP three times it is time to assess your score. For that you will need an accurate BP chart against which you can compare you BP score. If your values are lower than 120/80 this is considered optimal blood pressure. If your values are higher than 120/80 this may indicate pre-hypertension. You should consult your doctor for more information.