Synch with the ekg waveform. The slope of the arterial upstroke. Pin On Nurses A distinct a wave in the cvp trace due to atrial contraction ; Normal art line waveform . Difference in arterial waveforms according to site of insertion. This notch is called the dicrotic notch and is due to the closure of the aortic valve. Connect the 3 way tap to the distal end of the cvc line do not put a. It correlates directly with the ecg trace. A good art line trace has a distinct dicrotic notch, and after the fast flush test there are two oscillations only. Arterial lines inserted by md/pa/np; Mmhg systolic 120 0 anacrotic limb dicrotic limb area under the graph = map A normal wave form will be: The catheter with the balloon still inflated, is now advanced further until it wedges in a central branch of the pulmonary artery. This is the “square wave”. Indicated by the rate of change of pressure by unit time (dp/dt) i.e. That is to say, the narrowing and. Normal...