How is hypotension defined?

Hypotension, or low blood pressure, is defined as having a measurement of less than 90/60 mmHg. This condition can lead to symptoms such as dizziness, fainting, or fatigue due to inadequate blood flow to the organs. Blood pressure is measured in millimeters of mercury (mmHg) and is represented by two numbers: systolic (the pressure during heartbeats) over diastolic (the pressure between heartbeats). A reading below the established threshold of 90/60 indicates that the blood pressure is lower than what is typically expected, which can be a concern for health and might require monitoring or intervention. Understanding this definition helps distinguish it from hypertension, defined as high blood pressure, and means that consistent readings below this level may indicate a need for further assessment and care.