Normal blood pressure is less than 120 (systolic)/80 (diastolic).  Borderline blood pressure is 120-139 (systolic)/80-89 (diastolic).  High blood pressure is greater than 140 (systolic)/90 (diastolic).

If you suffer from high blood pressure (hypertension), the goal of treatment is to lower your blood pressure to less than 140/90.  If you are diabetic or have kidney disease, the goal is less than 130/80.  It is a good idea to monitor your blood pressure periodically with a home blood pressure machine, and record the readings in a diary for your cardiologist to review.