LSO 13: Medical Laser Safety Flashcards
Which is the first laser used in medical and surgery?
Ruby laser ( no longer use now for low efficiency and difficulting in cooling)
What is the most popular laser in surgery?
Co2 laser: very effective in cutting tissue with minimum bleeding. Can’t used fiber optics system
NdYag laser: heavy coagulation needed and when fiber optics system is required to deliver
How is laser used in dermatology?
Argon Laser : surface vascular lesion
Co2: watts overgrowth
ANSI Z136.3
developed to address Specific unique hazards
What is the scope of ANSI Z136.3?
This applies to any location where healthcare system laser is used as the medical device including hospital and non-hospital facilities such as salon and spas.
What is LTCA
Laser treatment and control area
What is the medical laser hazards and controls?
67% of medical laser accidents: operator error
lack of training, inadequate supervision,
what does the laser exposure depends upon?
Extent of exposure depends on the duration and wavelength
How is patient eyes protected?
eye taped and covered with wet gauze,periorbital goggles and corneal shields
Things to consider for medical laser use?
Local exhaust system for shocking the plum and appropriate laser protective eyewear, patient protection
What are hazards
airways and endotracheal tube in fire, EU tubes in fire
What are controls to beam initiated fires?
Airways/EU tube considerations, oxygen flow rate, terminate surgery,sterile water
What is beam hazard to : support personnel?
Misdirected beams, secondary reflections
What is the beam hazard to: bystanders?
there for treatments or observation, make sure we are providing the same level of procedures.
What is beam hazard to service personnel?
must be wearing appropriate eyewear and train in laser safety.
What are non beam hazard in health care?
electrical : practice logout, tag out and LGAC: LEV local exhaust ventilation preferred control
PPE last resort
Which of the following hazards have been implicated in the death of the patients or employees using medical laser?
Electricity and beam-initiated hazards
What are required medical safety features?
guarded switches,emergency shut off switch,beam delivery disconnect, key switch master control and power meters
Where are guarded switches required?
minimize the chance of accidental exposure, pedal or feet control
What are emergency shutoff switch
that could immediately stop laser, equipment malfunction, fire or emergency
What are beam delivery disconnect?
shut off laser if fiber optics not connected, prevents accidental exposures
What are key switch master control?
required for class 3b or 4 lasers,must be removed and stored away separately and securely
what are power meters?
measuring whether the laser is emitting the required amt of radiation
What are required administrative control?
Required training not only for laser users but also operators, support staffs , LSO , DLSO
Refresher training at least within 5 years
What is operator credentialing ?
must be credentialed to ensure the staff has sufficient skills and training to perform the procedure
