Question: what is normal blood pressure ratio?
Answer: A healthy blood pressure reading should be lower than 120/80 mmHg. Normal blood pressure is less than 120 mmHg systolic and 80 mmHg diastolic (see blood pressure chart below), and may vary from 90/60mmHg to 120/80mmHg in a healthy young woman. A blood pressure of 140/90 mmHg or higher indicates high blood pressure.