Electricity, US, MRI, Weak acids and bases Flashcards
Most common site of airway fire
Airway, followed by head or face and elsewhere on or inside Pt.
Fires are a risk when using nasal cannula and what tool for a procedure?
Laser or cautery
Doing this should be avoided in arranging drapes as it can trap O2 and increase risk of fire:
Tenting
What can be done to remove trapped O2 under tented drapes?
Suction catheter under to remove O2. Large bore
When using laser cautery, use what type of lube?
Water soluble
What air: oxygen mix should be used with laser or cautery?
As little O2 as possible to keep SPO2 >92%.
Don’t use nitrous!
This type of ETT is highly flammable
Polyvinyl chloride
What should be placed around circuit when laser in use?
Wet towels, Support circuit
What absolutely must be kept nearby work area when laser and cautery is in use?
Bottle of sterile water
Most frequent laser related complication?
Airway fire
What can be used to fill ETT balloon?
Water, or mix with methylene blue
2-3 L/min of O2 should be sufficient if the patient is not what?
Oversedated!
The first thing to be done at the sign of ETT fire:
Disconnect circuit and extubate patient, remove any burning ETT that remains
Second thing after ETT fire
Irrigate site/mouth/face, mask ventilate, or reintubate.
Three elements required for a fire
Heat source, Oxygen, Fuel
Example of heat source
electrocautery, static electricity, fiberoptic sources, defibrillators, lasers
Fuel source:
Hair, skin, drapes, PVC, gowns, towels, sponges, Skin prep solutions, bowel gas
Oxidizer:
Oxygen and Nitrous Oxide
Don’t drape patient until:
Prep is dry!
Use drapes that are:
fire retardant
Two preps that are water-based:
Pharmaseal and betadine
Protect hair with:
KY gel
Class A extinguisher:
(ash): wood, paper, cloth.
Class B
(boils): grease, flammable liquid fires
