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Jul
6
awarded  Yearling
Jul
6
accepted How does pressure measured by sphygmomanometer translate directly to blood pressure?
Jul
6
comment How does pressure measured by sphygmomanometer translate directly to blood pressure?
Ah, makes perfect sense. That was pretty much the only question(s) I had right now. Thanks very much once again!
Jul
6
comment How does pressure measured by sphygmomanometer translate directly to blood pressure?
One last thing, I was wondering about something you brought up >*"You could conceivably measure blood pressure by submerging their arm in water"* That's very intriguing point. 200mmHg = 0.26atm and 1atm is 10m deep in water so 200mmHg = 2.6m deep in water? Now if a sphygmomanometer applying 200mmHg on the arm basically stops the blood flow, does that mean that in 2.6m deep inside the water the blood flow would also be stopped? This is clearly not the case. Have I mistaken somewhere in my logic?
Jul
6
comment How does pressure measured by sphygmomanometer translate directly to blood pressure?
I see. Even earlier I imaged the cuff is directly choking on the artery but what I still don't get is how the pressure on the walls of the cuff measure pressure on the walls of the artery (or the hand, if the pressure is transmitted). I guess it's more of a physics question then, I'll have to spend some more time thinking about it. Thanks for your replies, really appreciate it.
Jul
6
awarded  Commentator
Jul
6
comment How does pressure measured by sphygmomanometer translate directly to blood pressure?
okay I understand that, the arm can be treated as stationary liquid, but I'm afraid I still don't see how that answers my question? Actually I'm slightly more confused as to how the arm comes into discussion at all? weren't we just talking about the artery and the cuff? I'm definitely missing something very obvious and I very much appreciate your responses.
Jul
6
comment How does pressure measured by sphygmomanometer translate directly to blood pressure?
Thanks for the answer, but please bear with me as I might be missing something very obvious here because even though I did understand how Korotkoff sounds help in the measurement, yet I'm still having trouble understanding how exactly do these readings on the sphygmomanometer (like 120mmHg for systolic pressure) actually relate to the pressure that's exerted by the blood on the walls of the artery? Doesn't the sphygmomanometer only measure the pressure exerted by the (compressed) air on the walls of the cuff? How does this pressure directly equate to the blood pressure?
Jul
6
comment Is pulse rate measurable in the capillary bed and venous vasculature?
If it adds to the context, I was trying to learn how exactly does a sphygnomanometer help in measuring the blood pressure and I encountered this line on Korotkoff sounds page: "As the heart beats, these pulses are transmitted smoothly via laminar (non-turbulent) blood flow throughout the arteries, and no sound is produced." which kinda sounds like the pulsating flow of the blood from the heart becomes smooth and continuous in the arteries (unless I'm misunderstanding). Anyways I'm curious and looking forward to the answers as well.
Jul
6
comment Is pulse rate measurable in the capillary bed and venous vasculature?
I asked the original question but mine was probably a lot dumber :) as I was basically just asking whether blood flow was continuous in the arteries of the wrist itself (something I mistakenly imagined were the case), to which the answer would've been "duh no" because if it were you wouldn't be able to measure the pulse. Yours is a great question though, clearly much more than just an interpretation. +1
Jul
6
revised How does pressure measured by sphygmomanometer translate directly to blood pressure?
edited title
Jul
6
asked How does pressure measured by sphygmomanometer translate directly to blood pressure?
Jun
9
awarded  Caucus
Mar
9
awarded  Notable Question
Oct
23
accepted Difference between medicinal caffeine and regular caffeine
Oct
22
asked Difference between medicinal caffeine and regular caffeine
Oct
18
accepted Are there organisms that have incorporated plastic into their lives?
Oct
18
revised Are there organisms that have incorporated plastic into their lives?
added 10 characters in body
Oct
18
comment Are there organisms that have incorporated plastic into their lives?
@Chris Yes, Manmade plastic.
Oct
18
asked Are there organisms that have incorporated plastic into their lives?