Laser & Radiation Safety UPDATED
ACTUAL Exam Questions and CORRECT
Answers
T/F It is necessary to use flame retardant drapes during laser surgery. - CORRECT
ANSWER - True
What does the acronym LASER stand for? - CORRECT ANSWER - Light Amplification
by Stimulated Emission of Radiation
How will the laser's power, color, wavelength, and duration of use affect the tissue? - CORRECT
ANSWER - depth of penetration
What does the acronym MRI stand for? - CORRECT ANSWER - Magnetic resonance
imaging
List the three characteristics of lasers: 3 points - CORRECT ANSWER - monochromatic,
collumated, coherant
T/F A CT or CAT scan stimulates the nuclei of the H+ atoms in cellular water. As they return to
their normalstate of equilibrium, they emit radiofrequency signals that are converted to images
and recorded. - CORRECT ANSWER - False
Sponges and towels used near the laser tissue impact site are kept wet in order to: - CORRECT
ANSWER - prevent ignition of these materials by reflected beam
The ___________determines the degree of thermal damage from the laser. - CORRECT
ANSWER - -sensitivity of the irradiated tissue
-amount of tissue affected
-length of time tissue is exposed
, T/F The C02 Laser beam is invisible to the human eye. - CORRECT ANSWER - True
T/F An Eximer Laser could be used to remove a tattoo. - CORRECT ANSWER - False
In the surgical setting, staff members will use a __________ to measure their exposure to
radiation. - CORRECT ANSWER - dosimeter badge
What item should always be on the surgical technologist's sterile field while the laser is in use? -
CORRECT ANSWER - Basin of sterile water or saline
The __________ in wave science is the number of waves per second measured in hertz. -
CORRECT ANSWER - frequency
T/F A MRI is most useful for diagnosing soft tissue abnormalities. - CORRECT
ANSWER - True
A ______ should be designated to monitor and enforce laser standards and precautions. -
CORRECT ANSWER - Laser Safety Officer
The part of the laser system that provides energy to produce light is called the ___________. -
CORRECT ANSWER - Excitation source
List 3 different types of lasers used in the operating room as well as a correct procedural
application for each. - CORRECT ANSWER - -C02: port wine stains, tattoo removal,
larynx --Argon: retina, tattoo removal
-Excimer: comeal, angioplasty
-Nd: YAG: large vessels, disc material holmium-bone, cartilage, prostate etc.
List three intra-operative uses of fluoroscopy. - CORRECT ANSWER - -cholangiogram
ACTUAL Exam Questions and CORRECT
Answers
T/F It is necessary to use flame retardant drapes during laser surgery. - CORRECT
ANSWER - True
What does the acronym LASER stand for? - CORRECT ANSWER - Light Amplification
by Stimulated Emission of Radiation
How will the laser's power, color, wavelength, and duration of use affect the tissue? - CORRECT
ANSWER - depth of penetration
What does the acronym MRI stand for? - CORRECT ANSWER - Magnetic resonance
imaging
List the three characteristics of lasers: 3 points - CORRECT ANSWER - monochromatic,
collumated, coherant
T/F A CT or CAT scan stimulates the nuclei of the H+ atoms in cellular water. As they return to
their normalstate of equilibrium, they emit radiofrequency signals that are converted to images
and recorded. - CORRECT ANSWER - False
Sponges and towels used near the laser tissue impact site are kept wet in order to: - CORRECT
ANSWER - prevent ignition of these materials by reflected beam
The ___________determines the degree of thermal damage from the laser. - CORRECT
ANSWER - -sensitivity of the irradiated tissue
-amount of tissue affected
-length of time tissue is exposed
, T/F The C02 Laser beam is invisible to the human eye. - CORRECT ANSWER - True
T/F An Eximer Laser could be used to remove a tattoo. - CORRECT ANSWER - False
In the surgical setting, staff members will use a __________ to measure their exposure to
radiation. - CORRECT ANSWER - dosimeter badge
What item should always be on the surgical technologist's sterile field while the laser is in use? -
CORRECT ANSWER - Basin of sterile water or saline
The __________ in wave science is the number of waves per second measured in hertz. -
CORRECT ANSWER - frequency
T/F A MRI is most useful for diagnosing soft tissue abnormalities. - CORRECT
ANSWER - True
A ______ should be designated to monitor and enforce laser standards and precautions. -
CORRECT ANSWER - Laser Safety Officer
The part of the laser system that provides energy to produce light is called the ___________. -
CORRECT ANSWER - Excitation source
List 3 different types of lasers used in the operating room as well as a correct procedural
application for each. - CORRECT ANSWER - -C02: port wine stains, tattoo removal,
larynx --Argon: retina, tattoo removal
-Excimer: comeal, angioplasty
-Nd: YAG: large vessels, disc material holmium-bone, cartilage, prostate etc.
List three intra-operative uses of fluoroscopy. - CORRECT ANSWER - -cholangiogram
