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Damping

Overdamped trace

A damped arterial trace is a blunted trace with a low systolic and high diastolic reading. 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.

Underdamped trace

Is when the opposite occurs leading to a system that over-reacts to changes in pressure.

Monitoring damped

Damped trace

Monitoring arterial

Optimum damping

Monitoring underdamped

Underdamped trace

 

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