How do Blood Pressure monitors work?
How do Blood Pressure monitors work? A proper scientific name for a blood pressure monitoring device is sphygmomanometer.
For many decades, physicians used a manually inflated air-bladder cuff and a listening device called stethoscope to listen to arterial wall sounds. This is known as auscultatory method of measuring blood pressure.
Using this method required some practice and it was typically performed by trained medical practitioners.
Recent advances in medical technology paved way for inexpensive, easy-to-use, digital BP monitors that anyone could use in the comfort of their homes without specialized knowledge or training.
A digital BP monitor uses an inflatable air-bladder cuff, a battery-powered air pump and a pressure sensor for sensing arterial wall vibrations to measure blood pressure in an artery. This is known as oscillometric method.
There are two types of digital BP monitors: the upper-arm (shown above) and the wrist models (shown below). The upper-arm model has a cuff that is placed on the upper arm and is connected by a tube to the monitor that rests on a surface near the arm. The wrist model is smaller and the entire unit wraps around the wrist. Regardless of the BP monitor type, the measurement method is the same.
A digital blood pressure monitor uses an air pump to inflate a cuff surrounding an upper arm or a wrist with sufficient pressure to prevent blood flow in the local main artery. This pressure is then gradually released using a digitally-controlled solenoid valve until the moment that the blood begins to flow through the artery.
READ: US Scientists have possibly cured HIV in a woman for the first time
The blood pressure measured by a pressure sensor at this point determines the systolic pressure. Pulse rate is also sensed at this time. The measurement taken when the blood flow is no longer restricted determines the diastolic pressure. This complete measurement cycle is controlled automatically by the micro-controller.
Source:@Health on Telegram
Post Publications || Join us on Whatsapp || Post Disclaimer
SEND A STORY: Do you have a story for us or need a promotion/advertisement? Submit them via our email admin@edulearnweb or Ghanaeducation.org
TELEGRAM PAGE >>> [JOIN]
DOWNLOAD OUR EDUCATION NEWS APP - MOBILE APP
JOIN OUR EDUCATION NEW GROUPS (WHATSAPP)
Join one of our Whatsapp/Telegram Groups for current Ghana Education Service News Updates:
JOIN ONLY ONE... THANKS
TELEGRAM PAGE >>> [JOIN]
Group 1 >>New Group> [JOIN]
Group 2 >>New Group> [JOIN]
TELEGRAM PAGE >>> [JOIN]
Only websites that give us a URL backlink can repost our content on their sites.
The information contained in this post is for general information purposes only. The information is provided by edulearnweb.com and while we endeavour to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, products, services, or related graphics contained on the post for any purpose.
||About Us|| Contact Us