What blood pressure reading is classified as hypertension?

A blood pressure reading of 140/90 mm Hg is classified as hypertension according to the guidelines from organizations like the American College of Cardiology and the American Heart Association. Hypertension, or high blood pressure, is generally defined as having a systolic pressure (the first number) of 130 mm Hg or higher, or a diastolic pressure (the second number) of 80 mm Hg or higher.

In this case, 140/90 mm Hg exceeds the threshold for both systolic and diastolic measures, meaning it falls into the category of Stage 1 hypertension. This classification is significant because it indicates an increased risk for cardiovascular events and necessitates monitoring and possible intervention.

The other readings provided do not meet the criteria for hypertension. For instance, 120/80 mm Hg is considered normal, while 130/85 mm Hg is classified as elevated but not yet hypertensive. Similarly, 150/95 mm Hg, while also high, falls under Stage 2 hypertension, but the question specifically seeks the point at which hypertension is first classified, making the 140/90 option the most precise reference point.