How oodles different ways is blood pressure measured?

What devices are used?
How do they work?
What are the physics governing them?
Answers:
i'll put it this way..the deadliest forms of high blood pressure are due to mental attitude, as well as diet..

here's a clue...hypertension is measured like peas in a pod way a lie detector works..the problem is, you're so busy lying to yourself, 24/7 , the needle stays past its sell-by date the hook. When you add on the poison you're giving yourself, smoking alcohol , pork processed food, no exercise, then its just a business of time.
The main ways are:

Non-invasive blood pressure - that's the cuff, and it can be using a sphygmomanometer or an oscillometric NIBP machine.

Invasive pressures use a catheter in the artery connected to a pressure transducer.

As for the workings and physics, that's something for you to look up.

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