L.7 Flashcards
1
Q
What is the difference between systolic vs diastolic pressure?
A
- systolic = highest pressure in the cycle which results from the max contraction of the heart
- diastolic = minimum pressure which results from the relaxation of the heart
2
Q
What is the normal blood pressure range?
A
- it various between 80 mmHg (diastole) and 120 mmHg (systole)
3
Q
What is sphygmomanometer?
A
- a device used to measure arterial blood pressure by observing the effect of applying an external pressure on the circulation system
4
Q
Describe the structure of the sphygmomanometer.
A
- it has an inflatable cuff which is connected to the manometer and a small hand pump which is used to inflate the cuff
5
Q
What does the manometer measure?
A
- the pressure produced by the cuff as it is inflated
6
Q
Where is the cuffed placed?
A
- on the upper arm so that it covers the brachial artery (which is an artery that is easy to compress bc of the presence of a single bone behind it)
7
Q
The cuff is inflated to what pressure?
A
- pressure large enough to compress the artery so that it is completely closed (greater that systolic pressure)
- this will prevent blood flow through the artery & can be determined by listening for lack of blood flow sounds w/ a stethescope
8
Q
The cuff pressure is released slowly until…
A
It is just less than the systolic pressure
