High pressure of 134mmHg and low pressure of 74mmHg usually fall within the normal range. the diagnostic criteria for normal hypertension are high pressure ≥ 140mmHg or low pressure ≥ 90mmHg. the diagnostic criteria for hypotension are high pressure < 90mmHg or low pressure < 60mmHg. therefore, high pressure of 134mmHg and low pressure of 74mmHg fall within the normal range. If you have diabetes, your blood pressure should be controlled at 130/80mmHg or less. Diagnosis of hypertensive disorders requires three consecutive measurements at different time periods and can be diagnosed if they are all above 140mmHg or 90mmHg. Hypertensive disorders are further divided into grade 1, grade 2 and grade 3, and the diagnosis is made based on high pressure above 140mmHg, 160mmHg and 180mmHg, or low pressure above 90mmHg, 100mmHg and 110mmHg.