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How to: Measure Blood Pressure

An introductory video explaining how to manually measure blood pressure. In this video, we are sharing with you the auscultatory method of determining systolic and diastolic arterial pressures. The cuff is placed above the antecubital artery and the cuff is above the upper arm. The stethoscope is placed near the antecubital artery and no sound will be hear when there is enough pressure to close off the artery. When the pressure is slowly released, the sound of blood jetting through the vessel by the vibrations of the wall is called the Korotkoff sounds. The first sound is also the systolic pressure. The diastolic pressure is when a muffled quality occurs. Please note that the sound is often overestimated because sound can still be heard even after deflation of the cuff. This method is not 100% accurate but will give values within the 10% range.

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All right so after we take the heart rate heart rate we move on to blood pressure and so there’s some equipment that you need to have prepared for this this is the blood pressure cusp and so this whole black velcro thing is what you wrap around the patient’s arm and you have the pump right here which a lot which you pump up to put air in here and that’s what gets it tight around their arm and so before you begin you want to make sure this is twisted all the way to the right righty-tighty lefty-loosey so when you have it all the way to the right that’s how you close it off so that air actually pumps it into here otherwise you’ll keep squeezing and nothing will be happening the meter so when you pump it up you can gauge how much air you have in by how high the numbers are and you listen for the pulses with the stethoscope hope when you put it in your ears make sure that these prongs are facing forward not backwards even though that’s what you think it should be you face it forward and double check to make sure it’s on by twisting you can twist this and tap on it so you hear right now it’s not really making a noise in my ear but when I twist it then I can hear it and so that’s how you know if your stethoscope is on and working otherwise you might be sitting there and you thinking this person has no pulse when really your stethoscope is just driven off and then you have the patient put their right arm up on the table and we use the right arm just for consistency throughout all the tests so what you’re going to do is you’re going to try to see if you can find with the pulse on the brachial artery it’s usually towards the inside of the elbow around here and you kind of just take a little mental note of that and you’re going to wrap the cusp around their arm keep it snug but not super tight you just don’t want it to have it loose and wobbling around so you put these in and put the head of this gut stethoscope right where you had but pulse and double check to make sure this is all the way tight and you’re going to squeeze am I doing this you pump the air into the cusps I’m going to pump it up again just so you can see in the camera what’s going on so we have it up to about 200 and then we slowly let some air out and that’s where I heard my first thumb and you can see the dial bouncing up and down and the last thump I heard was about 64 so I got about 118 over 64 because that’s where I heard my first thumb walk heard more watch the dial bounce up and down and about 64 I didn’t hear anything anymore but essentially what you’re looking for is when you release the air you’ll see the dial go and you’ll begin to hear a thumps usually around 120 that’s just kind of an average some people might be a little higher a lot of people are lower than that and what you’re hearing here is the first thump is their systolic pressure so that’s when the heart has contracted and that’s the highest pressure and you’ll continue to hear light thumps and the last bump you hear is the second number you record and that’s their diastolic pressure and that’s when the heart is relaxed and it’s refilling with blood a lot of times people are a little scared UPS is kind of a more challenging one but with a little bit of practice you guys will be stars [Music]

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