Is blood pressure measured in kPa or mmHg?

Normal resting blood pressure, in an adult is approximately 120 millimetres of mercury (16 kPa) systolic over 80 millimetres of mercury (11 kPa) diastolic, denoted as “120/80 mmHg”….Systemic arterial pressure.

Category Systolic BP, mmHg Diastolic BP, mmHg
Isolated systolic hypertensionb ≥ 140 < 90

Why is Hg used for blood pressure?

As mercury is so much denser than water or blood, even very elevated blood pressures result in it rising no more than about a foot. This quirk of medical history gives us the modern measurement unit for blood pressure: millimetres of mercury (mmHg).

What is mmHg used for?

It is denoted mmHg or mm Hg. Although not an SI unit, the millimetre of mercury is still routinely used in medicine, meteorology, aviation, and many other scientific fields.

What is DIA in blood pressure?

Blood pressure is measured using two numbers: The first number, called systolic blood pressure, measures the pressure in your arteries when your heart beats. The second number, called diastolic blood pressure, measures the pressure in your arteries when your heart rests between beats.

What is SYS mmHg and Dia mmHg?

That’s what the mm/Hg stands for. Here’s what the numbers mean: Your systolic pressure (the top number) is the pressure of the blood in your arteries when your heart contracts or beats. Your diastolic pressure (the bottom number) is the pressure of the blood in your arteries between beats, when your heart relaxes.

What does 120 mmHg reading indicate?

What is high blood pressure (hypertension)?

Blood Pressure Levels
Normal systolic: less than 120 mm Hg diastolic: less than 80 mm Hg
At Risk (prehypertension) systolic: 120–139 mm Hg diastolic: 80–89 mm Hg
High Blood Pressure (hypertension) systolic: 140 mm Hg or higher diastolic: 90 mm Hg or higher

What is BP KPa?

KPa stands for kilopascal and describes the pressure exerted on a surface. KPa is widely used internationally as a unit of pressure and also measures eg the tyre pressure of cars. The unit mmHg (millimeter mercury column) is also used to measure blood pressure.

What is Torr used to measure?

The torr (symbol: Torr) is a non-SI unit of pressure defined as 1/760 of an atmosphere. It was named after Evangelista Torricelli, an Italian physicist and mathematician who discovered the principle of the barometer in 1644.

What is DIA mmHg?

When a healthcare professional takes your blood pressure, it’s expressed as a measurement with two numbers, one number on top (systolic) and one on the bottom (diastolic), like a fraction. For example, 120/80 mm Hg. Blood pressure is measured in millimeters of mercury. That’s what the mm/Hg stands for.

What is a diastolic reading?

Your diastolic blood pressure is the bottom number on your reading. It measures the force of blood against your artery walls as your heart relaxes and the ventricles are allowed to refill with blood.