What is an Overdamped waveform?

An over-damped waveform is when there is only one oscillation (or little to no vibrations / ringing) following the square wave test. A waveform that is damped will appear small in amplitude and flattened. The dicrotic notch will be hard to visualize and appreciate.

What causes Underdamping of arterial waveform?

Underdamping (defined as when the oscillations are too pronounced and can lead to a false high systolic or a false low diastolic pressure). Causes include: Catheter whip or artefact. Stiff non-compliant tubing.

Why is Phlebostatic axis important?

The phlebostatic axis is the reference point for zeroing the hemodynamic monitoring device. This reference point is important because it helps to ensure the accuracy of the various pressure readings. Nurses must ensure the accuracy of their hemodynamic monitoring devices.

What does an Overdamped arterial line mean?

Overdamped trace Mean arterial pressure often remains the same. Causes of over damping are a kinked catheter, blocked line or air bubbles in the line. If such a trace is seen then flushing the line or removing air bubbles may restore the accurate undamped trace.

What causes Overdamping?

Causes of over damping are a kinked catheter, blocked line or air bubbles in the line. If such a trace is seen then flushing the line or removing air bubbles may restore the accurate undamped trace.

What does Phlebostatic mean?

: abnormally slow venous blood circulation.

What is Dicrotic notch in arterial line?

The dicrotic notch, or incisura, which interrupts the arterial downslope, represents the closure of the aortic valve, which occurs just moments after the start of diastole. At the end of diastole, the waveform reaches its nadir.

What does Overdamping mean?

Definition of overdamp : to damp in excess use of a high sensitivity galvanometer greatly overdamped — Physical Review.

What is the difference between critically damped and overdamped?

Critical damping returns the system to equilibrium as fast as possible without overshooting. An underdamped system will oscillate through the equilibrium position. An overdamped system moves more slowly toward equilibrium than one that is critically damped.

What is overdamped response?

Overdamped. An overdamped response is the response that does not oscillate about the steady-state value but takes longer to reach steady-state than the critically damped case. Here damping ratio is greater than one.