Hypertension Stage I is defined by which ranges?

• A. 130-139 / 80-89
• B. 140-159 / 90-99
• C. 120-129 / less than 80
• D. 180/110 or higher

Answer: (A)

Blood pressure is categorized by two numbers, and Stage I uses the lower of the high ranges. Hypertension Stage I is defined when the systolic pressure is between 130 and 139 mmHg or the diastolic pressure is between 80 and 89 mmHg. This level signals elevated risk and prompts evaluation of overall cardiovascular risk and potential lifestyle changes, with medications considered based on that risk assessment.

The other ranges show different categories: 120–129 with a diastolic under 80 is considered elevated blood pressure, not a true hypertension stage. 140–159 or 90–99 fits Stage II hypertension, which usually warrants more intensive treatment. A reading of 180/110 or higher is a hypertensive crisis, requiring urgent medical attention.