What is the difference between radial and brachial pulse?

This exemplifies the need to ensure that the accuracy of BP devices, whether measured at the brachial or radial arteries, is assessed by comparison with intra-arterial measurement at the same arterial site.

Why sounds are heard in the brachial artery when the sphygmomanometer cuff is inflated to between systolic and diastolic pressure?

As the pressure in the cuff is allowed to fall further, thumping sounds continue to be heard as long as the pressure in the cuff is between the systolic and diastolic pressures, as the arterial pressure keeps on rising above and dropping back below the pressure in the cuff.

When taking blood pressure the cuff should be centered over the brachial artery?

Place the cuff over the bare upper arm with the artery mark positioned directly over the brachial artery. The bottom edge of the cuff should be positioned approximately one inch (2-3 cm) above the antecubital fold.

What is the difference between the Palpatory and Auscultatory method of determining pressure?

The first method is named the palpatory method, which records the pressure at which the subject feels the first pulse in the artery. The second method is the auscultatory method, in which the researcher detects the pulse by listening via a stethoscope placed in the antecubital fossa over the brachial artery.

What causes Auscultatory gap?

There is evidence that Auscultatory Gaps are related to carotid atherosclerosis, and to increased arterial stiffness in hypertensive patients. This appears to be independent of age. Another cause is believed to be venous stasis within the limb that is being used for the measurement.

Why does the sound stop when the cuff is deflated to reach the client’s diastolic pressure?

The Korotkoff sounds are the result of the turbulent blood caused by the inflated cuff compressing the artery and oscillations of the arterial wall when the heart beats during cuff deflation.

Why is there no sound from the artery after the cuff is inflated?

Initially the cuff is inflated to a level higher than the systolic pressure. Thus the artery is completely compressed, there is no blood flow, and no sounds are heard.

How does Auscultatory method measure blood pressure?

Auscultatory method:

1. Keep the bell of stethoscope over the brachial artery and inflate blood pressure cuff to a level higher than the systolic pressure determined by the palpatory method. Steadily deflate.
2. Record systolic and diastolic pressures based on the Korotkoff sounds.

Where should the cuff be placed when taking blood pressure?

Place the cuff on your bare upper arm one inch above the bend of your elbow. Make sure the tubing falls over the front center of your arm so that the sensor is correctly placed. Pull the end of the cuff so that it’s evenly tight around your arm.

When using the auscultatory method after initially inflating the cuff pressure in the cuff should be dropped at a rate of about?

The cuff pressure is inflated quickly to a pressure about 30 mm Hg higher than the systolic pressure determined by the method of palpation. Then the air is let out of the cuff at a rate such that cuff pressure falls at a rate of about 5 mm Hg/sec.

What is the auscultatory method?

The auscultatory method is based on the detection of Korotkoff sounds issued from the acoustic transudcer signal. Its main advantages are (1) similarities with usual clinical measurement of BP; and (2) accurate detection of systolic and diastolic pressures on the appearance and disappearance of sounds.