If you placed the stethoscope on the patient's bracial artery, but did not put the BP cuff on the patient, you wouldnt hear blood flow sounds. Explain Why you woundnt hear hear bllod floww sounds if you didn't put the BP cuff in the patient?
The BP cuff constricts arteries and veins, so when the blood pulses to try and get through, that's what you'd hear. (The pounding)
If that makes sense....?
When you place the stethoscope on the patient's brachial artery, you are directly listening to the blood flow sounds in the artery. However, if you do not put the blood pressure (BP) cuff on the patient, you will not be able to hear these sounds. Here's why:
The BP cuff is an important part of the blood pressure measurement process. When you inflate the cuff, it applies pressure around the patient's upper arm, including the brachial artery. This pressure temporarily obstructs the blood flow through the artery.
Once you have properly inflated the cuff, you will gradually release the pressure by deflating it. As the cuff deflates, the pressure on the artery decreases. At a certain point, the pressure inside the cuff falls below the patient's systolic blood pressure (the pressure exerted on arterial walls when the heart is contracting) and then below the diastolic blood pressure (the pressure in the arteries when the heart is at rest).
When the pressure inside the cuff falls below the systolic pressure, blood starts flowing through the partially compressed brachial artery, causing turbulent blood flow. This turbulence generates the characteristic whooshing sound that you hear with the stethoscope.
If you do not put the BP cuff on the patient, there will be no external pressure on the brachial artery, and therefore, no turbulence of blood flow. As a result, there will be no sound of blood flow for you to hear through the stethoscope.
In summary, without using the BP cuff to temporarily compress the brachial artery, there will be no turbulence of blood flow, and thus no blood flow sounds to be heard through the stethoscope.