Zeroing the transducer...help?!

  1. 0
    Can someone please please please talk me through zeroing a line, such as an art line or cvp line? I'm new to critical care and go so intimidated with all these lines. My biggest issue is when I have to zero the line. I have so many silly questions:

    1. Do I flush the line first?
    2. When I place the sterile cap back on the stopcock?
    3. When do I press the zero button on the monitor?

    A step by step instruction would really help!!! I know I have to turn the line off the patient (stopcock pointing toward the hard cable) and then remove my sterile cap)...but after that I screw up lol.

    Any help would be greatly appreciated.
  2. 13 Comments so far...

  3. 4
    1) Turn stopcock off to patient
    2) Remove cap
    3) Press "Zero"
    4) Replace cap
    5) Turn stopcock back to neutral
    nursgirl, NtannRN, Rabid Response, and 1 other like this.
  4. 3
    Quote from meandragonbrett
    1) Turn stopcock off to patient
    2) Remove cap
    3) Press "Zero"
    4) Replace cap
    5) Turn stopcock back to neutral
    I always throw in a good flush to look for a plateau in my wave form too.
    nursgirl, NtannRN, and cwhitebn like this.
  5. 0
    Thanks for the help!!! Really appreciate it!
  6. 1
    "1) Turn stopcock off to patient
    2) Remove cap
    3) Press "Zero"
    4) Replace cap
    5) Turn stopcock back to neutral"


    excellent
    simple and clear
    but some types of caps contain a hole in side it, so no need to remove it


    remember:
    if arterial line the pressure in cuff to be 300 mmHg

    the flush is very important and some times if you interface a problem reinsure there is no air bubbles inside tube to give accurate reading.
    cwhitebn likes this.
  7. 1
    above is correct, but always give a decent flush to the open to air 3 way port before you re-cap and turn the stop cock open to pt. its also a good time to re-level your transducer if needed before you hit the zero button.
    sethmctenn likes this.
  8. 1
    Check you're square wave and make sure you're not over/underdampened
    nursgirl likes this.
  9. 0
    Also, wait for the '0' on the screen before putting the cap back on
  10. 0
    Quote from meandragonbrett
    1) Turn stopcock off to patient
    2) Remove cap
    3) Press "Zero"
    4) Replace cap
    5) Turn stopcock back to neutral
    Yes, that exactly.
  11. 0
    at what step in the procedure do you flush?


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