Isolated Power Specialist
Isolated Power Specialist

What To Do In Case a LIM Alarms During an Operation

Scenario 1

What Happened: You just plugged a piece of equipment into a receptacle and the panel alarms.

What Should You Do: Unplug the equipment, the LIM should go back to a normal condition

Corrective Action: If the panel stops alarming, red tag the equipment and remove it from the

                               operating room.

 

Scenario 2

What Happened: The panel alarmed for no apparent reason

What Should You Do:

  1. Silence the line isolation monitor by pushing the “Push to Silence” button on the line isolation monitor or the remote annunciator
  2. The power cord may be showing signs of age or cuts due to equipment running over the cords
    • Studies have shown that procedures in operating rooms can be just as harsh to power cords as on construction sites
    • Panel Meter Bar is red
    • Visually look for fluids on the floor and electric cords in the fluids.
    • Panel Meter reading is greater than 4.8
    • Green safe light is off
    • Yellow light designates the LIM is in silent mode
    • Red alarm light indicates an alarm
    • The audible alarm will silence
  3. Ask the doctor if it is permissible to unplug the power cord
    • If the doctor says it is ok
      • Then unplug the power cord, it may be the cause of the alarm
      • If the panel stops alarming, replace and red tag the equipment for maintenance to inspect for damage
    • If the doctor says it is not ok
      • Then call Engineering and notify them the LIM is in alarm so they can come and check room. Leave all equipment turn on that was being used when alarm happened.

Note: When the panel alarms it does not mean there is an unsafe condition. It means that if another fault occurs while in the alarm condition, there could be a possibility of a shock. Safely remove the patient from the room after completing the case. Close the room and resolve the problem. 

  1.   Is there any equipment resting on a power cord
    • If it is permissible to move the equipment off of the power cord, move the equipment to clear the power cords
    • If it is not permissible to move the equipment off of the power cord
      • Ask the doctor if it is permissible to unplug the power cord
        • If the doctor says it is ok then unplug the power cord, reroute the power cord away from the equipment
          • If the panel stops alarming, replace and red tag the equipment for maintenance to inspect for damage
        • If the doctor says it is not ok
          • Then call Engineering and notify them the LIM is in alarm so they can come and check room. Leave all equipment turn on that was being used when alarm happened.

Note: When the panel alarms it does not mean there is an unsafe condition. It means that if another fault occurs while in the alarm condition, there could be a possibility of a shock. Safely remove the patient from the room after completing the case. Close the room and resolve the problem.

  1. If nothing seems obvious
    • Then call Engineering and notify them the LIM is in alarm so they can come and check room.
    • Leave all equipment turn on that was being used when alarm happened.

Note: When the panel alarms it does not mean there is an unsafe condition. It means that if another fault occurs while in the alarm condition, there could be a possibility of a shock. Safely remove the patient from the room after completing the case. Close the room and resolve the problem.

Once the patient is out of the room, the room must be shut down until the fault is cleared

 

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