How many stages are there in the classification of hypertension?

The classification of hypertension is organized into four distinct stages, each defined by specific blood pressure ranges. These stages help healthcare providers assess the severity of hypertension and guide treatment decisions.

The first stage, known as "Normal," is characterized by systolic blood pressure (SBP) below 120 mmHg and diastolic blood pressure (DBP) below 80 mmHg. The second stage is called "Elevated," which includes SBP ranging from 120-129 mmHg and DBP less than 80 mmHg. The third stage is termed "Hypertension Stage 1," where SBP ranges from 130-139 mmHg or DBP from 80-89 mmHg. Finally, "Hypertension Stage 2" is defined by SBP of 140 mmHg or higher or DBP of 90 mmHg or higher.

In some classifications, there is also a fifth category, referred to as "Hypertensive Crisis," which encompasses conditions requiring immediate medical attention, but traditional stages for diagnosing and managing hypertension are primarily classified into four main stages. This structured approach aims to standardize the understanding of hypertension and foster appropriate interventions based on the identified stage.