LSO 13: Medical Laser Safety

Question 1

Which is the first laser used in medical and surgery?

Answer 1

Ruby laser ( no longer use now for low efficiency and difficulting in cooling)

Question 2

What is the most popular laser in surgery?

Answer 2

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

Question 3

How is laser used in dermatology?

Answer 3

Argon Laser : surface vascular lesion

Co2: watts overgrowth

Question 4

ANSI Z136.3

Answer 4

developed to address Specific unique hazards

Question 5

What is the scope of ANSI Z136.3?

Answer 5

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.

Question 6

What is LTCA

Answer 6

Laser treatment and control area

Question 7

What is the medical laser hazards and controls?

Answer 7

67% of medical laser accidents: operator error

lack of training, inadequate supervision,

Question 8

what does the laser exposure depends upon?

Answer 8

Extent of exposure depends on the duration and wavelength

Question 9

How is patient eyes protected?

Answer 9

eye taped and covered with wet gauze,periorbital goggles and corneal shields

Question 10

Things to consider for medical laser use?

Answer 10

Local exhaust system for shocking the plum and appropriate laser protective eyewear, patient protection

Question 11

What are hazards

Answer 11

airways and endotracheal tube in fire, EU tubes in fire

Question 12

What are controls to beam initiated fires?

Answer 12

Airways/EU tube considerations, oxygen flow rate, terminate surgery,sterile water

Question 13

What is beam hazard to : support personnel?

Answer 13

Misdirected beams, secondary reflections

Question 14

What is the beam hazard to: bystanders?

Answer 14

there for treatments or observation, make sure we are providing the same level of procedures.

Question 15

What is beam hazard to service personnel?

Answer 15

must be wearing appropriate eyewear and train in laser safety.

Question 16

What are non beam hazard in health care?

Answer 16

electrical : practice logout, tag out and LGAC: LEV local exhaust ventilation preferred control
PPE last resort

Question 17

Which of the following hazards have been implicated in the death of the patients or employees using medical laser?

Answer 17

Electricity and beam-initiated hazards

Question 18

What are required medical safety features?

Answer 18

guarded switches,emergency shut off switch,beam delivery disconnect, key switch master control and power meters

Question 19

Where are guarded switches required?

Answer 19

minimize the chance of accidental exposure, pedal or feet control

Question 20

What are emergency shutoff switch

Answer 20

that could immediately stop laser, equipment malfunction, fire or emergency

Question 21

What are beam delivery disconnect?

Answer 21

shut off laser if fiber optics not connected, prevents accidental exposures

Question 22

What are key switch master control?

Answer 22

required for class 3b or 4 lasers,must be removed and stored away separately and securely

Question 23

what are power meters?

Answer 23

measuring whether the laser is emitting the required amt of radiation

Question 24

What are required administrative control?

Answer 24

Required training not only for laser users but also operators, support staffs , LSO , DLSO
Refresher training at least within 5 years

Question 25

What is operator credentialing ?

Answer 25

must be credentialed to ensure the staff has sufficient skills and training to perform the procedure