Over dampened tracing
➖➖➖➖➖➖➖➖➖
⏺May result in an under-reading of pressures
⏺This may cause an underestimation of the systolic pressure and overestimation of diastolic pressure.
▶️Check the transducer position as it may be too high above RA.
▶️Kinking of the catheter at the insertion site may also cause the waveform to become dampened.
Under dampened tracing
➖➖➖➖➖➖➖➖➖
⏺noted by a high initial spike in the waveform
⏺because of inadequate damping of the transducer, which causes an excessive resonance in the system.
⏺ May result in an overestimate of systolic pressure and an underestimate of diastolic pressure.
▶️check the transducer position. It may be too low below the RA.
Better to re-zero the transducer to atmospheric pressures, in both of the above situations
