Systolic pressure overshoot with a narrow peak and non-physiological oscillations during the diastolic phase.There are two main types of artifacts that can be seen on an arterial line tracing.Bottom of Downstroke: Bottom of the wave form just prior to the upstroke Diastolic blood pressure.Dicrotic Notch: Closure of the aortic valve and subsequent retrograde flow.Peak of the Upstroke: The rounded part at the top of the waveform Systolic blood pressure.This is one of the highest blood pressures I have ever seen, but the question is, how accurate is it? Normal Arterial Waveform The above waveform and pressure are what was seen on the monitor. The patient is intubated for airway protection and due to the difficulties in obtaining blood pressures with the non-invasive blood pressure cuff an arterial line is placed (See image below). All we know about the patient is they have a history of hypertension. Imagine a patient presenting with altered mental status. In other words, think of damping like a shock absorber. Damping is the influence within a system that is a dissipation of energy during an oscillation.
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