Showing posts with label anaesthesiology. Show all posts
Showing posts with label anaesthesiology. Show all posts
Tuesday, April 26, 2016
Thursday, December 31, 2015
Trouble Shooting the Arterial Blood Pressure Tracing: OVER DAMPENING & UNDER DAMPENING ▪️▪️▪️▪️▪️
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
Friday, December 18, 2015
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