EMS Monitoring Devices: Tips and Pitfalls

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Presentation transcript:

EMS Monitoring Devices: Tips and Pitfalls Kathleen Schrank, MD, FACEP, FACP City of Miami Fire Rescue University of Miami Miller School of Medicine

Cardiac arrest, good ETT, should see “CO2 initializing” then:

Arrest: ETT confirmed Low perfusion

But, where is this ETT?

Flat straight solid black line at 0

Good tube / Bad tube One good waveform, then irreg/irreg/small Tube in trachea, moved to esophagus

Playing with our LP 12 As the sensor is screwed in, you’ll see: Screw in more and then fully:

Playing with our LP 12 Microstream sensor screws in 3 rotations When nearly tight, waveform may go from: - - - - to solid/flat/straight at zero (instead of pt tracing) Tighten a little, get a waveform & low plateau Tighten more, higher plateau TIGHTEN UNTIL WINGS HORIZONTAL = full waveform MIGHT LOOSEN during use—looks like tube moved (Tighten too far = broken sensor gold ring)

Straight flat solid black line at 0 Could be: ETT is NOT in trachea, or Good tube but sensor line is NOT fully connected, or Long dead Actions: Tighten (wings horizontal) and bag 2-3 times watching for waveform or variation If none, immediately reconfirm ETT (& check CPR): Re-visualize with scope to see tube thru cords Recheck all signs, patient status Use a different device (colorimetric, EDD, etc) CONSIDER WHOLE PICTURE before replacing ETT DOCUMENT, DOCUMENT, DOCUMENT

More Trouble-shooting (LP12) Good waveform but low plateau: Tube above the cords/hypopharynx, or Sensor connection not quite tight, or Perfusion poor Is it time to call the code (ET <10)? Hard to read due to calibration scale 0-50 Be sure that sensor connection is good Did tube move after defib? Tracing pauses after shock (or sensor now loose) Nasal sensor: variable readings Solid straight flat black line at high #= ????