The second extracted source BP fe,S2 is similar to the biphasic blood waveform of the typical blood flow at the femoral artery and plays a pivotal role in the augmentation of pressure in the systole. It consists of a sharp systolic forward up rise and fall, and a backward wave identical to the reverse flow during early diastole.

Arterial pressure monitoring is a form of invasive blood pressure monitoring and is done through the cannulation of a peripheral artery. This form of monitoring is commonly utilized in the management of critically ill and perioperative patients.

The arterial pressure wave (which is what you see there) is a pressure wave; it travels much faster than the actual blood which is ejected. It represents the impulse of left ventricular contraction, conducted through the aortic valve and vessels along a fluid column (of blood), then up a catheter, then up another fluid column (of hard tubing ...

The red arterial blood pressure waveform represents a “normal,” non-distorted waveform with normal fast-flush test, whereas the blue arterial blood pressure waveforms represent an underdamped (upper part of the figure) or overdamped (lower part of the figure) arterial blood pressure waveform.

When compared with subjects with a typical triphasic flow waveform, those with a biphasic waveform lacking diastolic forward flow were significantly older of age, shorter of stature, and more frequently female and diabetic and had lower diastolic blood pressure and smaller femoral artery diameter (Table S4).