Contents
What causes Underdamped 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.
What is underdamped waveform?
Last, an under-damped waveform is where there is “ringing” or multiple oscillations / vibrations that follow the square wave test. A waveform that is under-damped will appear saltatory in nature causing variations in the systolic and diastolic blood pressure values.
What is Dicrotic notch?
The dicrotic notch is a prominent and distinctive feature of the pressure waveform in the central arteries. It is universally used to demarcate the end of systole and the beginning of diastole in these arteries.
What is the nurse’s responsibility for an arterial line?
RNs in CCTC are responsible for the priming, zeroing, leveling, and maintenance of hemodynamic pressure monitoring circuits and for the assessment and monitoring of hemodynamic pressures and waveforms. RNs in CCTC may flush hemodynamic monitoring circuits as required to maintain patency.
What causes an underdamped waveform in the heart?
Causes include: 1 Loose connections. 2 Air bubbles. 3 Kinks. 4 Blood clots. 5 Arterial spasm. 6 Narrow tubing.
What causes under damping in square wave testing?
Things like excessive tubing length, the use of multiple stopcocks, and patient conditions, such as tachycardia, or a high cardiac output, can all cause under-damping.
Which is an example of a damped waveform?
Arterial spasm. Narrow tubing. Accordingly, what is dampened waveform? A damped wave is a wave whose amplitude of oscillation decreases with time, eventually going to zero, an exponentially decaying sinusoidal wave. Why do we do a square wave test?
What causes underdamping and what causes overdamping?
According to Big Blue, increasing the LENGTH of the tubing causes underdamping, whereas in the Hall question book (q. 85), increasing the LENGTH of the tubing causes overdamping. Can anyone clear this confusion? Click to expand… I was reading the SOCCA resident’s guide and had the same question.