IBEC ELECTROLYSIS & LASER BOARD TEST PAPERS EXAM
2025/2026 QUESTIONS WITH ANSWERS GRADED A+
✔✔Repetition rate is measured in what unit? - ✔✔hertz (Hz)
✔✔Who is the grandfather of laser and was the first person to use water to cool the skin
during laser? - ✔✔Rox Anderson
✔✔The formula for fluence is? - ✔✔Joules = J/cm2
✔✔What kind of lasers allow for selective heating of specific targets? - ✔✔Selective
photothermolysis
✔✔For deeper laser penetration what should the practitioner do to the laser? -
✔✔Change to a bigger spot size
✔✔The primary reason for using cooling devices during laser hair removal is? -
✔✔Allows for higher and more effective fluences to be used while sparing the epidermis
✔✔During the initial consultation, the patient should be informed that the process will
take how long for laser hair removal? - ✔✔A series of treatments
✔✔The principle that says energy must be absorbed by an object in order to produce an
effect is called? - ✔✔Grotthuss-Draper law
✔✔What is laser light? - ✔✔Monochromatic light
✔✔Laser is equivalent to which of the following modalities? - ✔✔Thermolysis
✔✔An element has the ability to produce laser when it is in which state? -
✔✔Metastable state
✔✔What are the positive reactions to the skin indicating a successful LHR treatment? -
✔✔Perifollicular erythema, perifollicular edema
✔✔Incandescent light is an example of? - ✔✔Incoherent light
✔✔A requirement for foot switches that directly pulse the laser is that they be? -
✔✔Hooded
✔✔The effect of skin turning red after treatment is referred to as? - ✔✔Erythema
,✔✔An over treatment of the skin characterized by blistering or epidermal separation,
caused by lateral pressure on the skin is known as? - ✔✔Nikolski Sign
✔✔When tissue has been injured, fluid escapes the blood vessels to surround the
damaged tissue. This is referred to as? - ✔✔Edema
✔✔The common type of laser used for hair removal is? - ✔✔Pulsed
✔✔Total destruction of tissue using laser energy is known as? - ✔✔photoablation
✔✔Laser is ineffective on hair that has? - ✔✔Little to no pigment
✔✔The energy level of a laser, measured in joules is known as? - ✔✔Energy fluence
✔✔Lightwaves that travel in perfect unison, parallel and in the same direction are
known as? - ✔✔Coherent light
✔✔Optical density labeling on laser safety eyewear refers to? - ✔✔the degree to which
a refractive medium retards transmitted rays of light
✔✔An allergic phototoxic reaction can occur up to how many hours post-treatment? -
✔✔24
✔✔Which part of the body is most vulnerable to laser light? - ✔✔Eyes (cornea, retina,
and lens)
✔✔What is used to cool the inside of most pulsed lasers during operation? - ✔✔Distilled
water
✔✔What is the chromophore when using the Nd:YAG laser for hair removal? -
✔✔Melanin in the hair shaft and bulb
✔✔What is the FDA class that presents both a direct and reflected hazard? - ✔✔Class
IV
✔✔What is considered a natural chromophore for hair removal lasers? - ✔✔melanin in
the hair shaft and bulb
✔✔Hair removal lasers are effective on which types of hair follicles? - ✔✔Curved
Distorted
Straight
, ✔✔What is most likely the cause of red, itchy bumps in the treatment area 10-14 days
after a patient's laser hair removal treatment? - ✔✔Detached hair becoming trapped
under the skin
✔✔Laser hair removal is least effective on follicles in what stage of development? -
✔✔Telogen
✔✔The voluntary nationally recognized group establishing standards for equipment use
is known as? - ✔✔American National Standards Institute (ANSI)
✔✔types of epidermal cooling - ✔✔Bulk - gel (topical)
contact - a window cooled by circulating liquid
cryogen spray - applied pre-laser pulse
air - zimmer cooler
✔✔LHR on patients with a Fitzpatrick of V & VI requires? - ✔✔Longer wavelengths
(diode 810nm or Nd:YAG 1064nm)
✔✔Who is considered to be the "father of lasers" in medicine? - ✔✔Leon Goldman
✔✔Components of the laser include - ✔✔A flashlamp/high intensity non-coherent light
source, Lasing medium, Fiber optics and lenses
✔✔What are the properties of light when it reacts with tissue? - ✔✔Scatter
Transmission
Absorption
Reflection
✔✔What is the waiting period before laser treatment after a patient stops taking
Accutane? - ✔✔180 days (6months)
✔✔Longer laser lengths, penetrate the tissue - ✔✔Deeper
✔✔An increase in color in cells post treatment is referred to as? -
✔✔Hyperpigmentation
✔✔The duration on the pulse from a laser is known as? - ✔✔Pulse width
✔✔What is most critical for protecting the skin during laser hair removal? - ✔✔Cooling
the skin
✔✔What is considered the chromophore when a laser is used to treat red spider veins?
- ✔✔Oxyhemoglobin (blood)
2025/2026 QUESTIONS WITH ANSWERS GRADED A+
✔✔Repetition rate is measured in what unit? - ✔✔hertz (Hz)
✔✔Who is the grandfather of laser and was the first person to use water to cool the skin
during laser? - ✔✔Rox Anderson
✔✔The formula for fluence is? - ✔✔Joules = J/cm2
✔✔What kind of lasers allow for selective heating of specific targets? - ✔✔Selective
photothermolysis
✔✔For deeper laser penetration what should the practitioner do to the laser? -
✔✔Change to a bigger spot size
✔✔The primary reason for using cooling devices during laser hair removal is? -
✔✔Allows for higher and more effective fluences to be used while sparing the epidermis
✔✔During the initial consultation, the patient should be informed that the process will
take how long for laser hair removal? - ✔✔A series of treatments
✔✔The principle that says energy must be absorbed by an object in order to produce an
effect is called? - ✔✔Grotthuss-Draper law
✔✔What is laser light? - ✔✔Monochromatic light
✔✔Laser is equivalent to which of the following modalities? - ✔✔Thermolysis
✔✔An element has the ability to produce laser when it is in which state? -
✔✔Metastable state
✔✔What are the positive reactions to the skin indicating a successful LHR treatment? -
✔✔Perifollicular erythema, perifollicular edema
✔✔Incandescent light is an example of? - ✔✔Incoherent light
✔✔A requirement for foot switches that directly pulse the laser is that they be? -
✔✔Hooded
✔✔The effect of skin turning red after treatment is referred to as? - ✔✔Erythema
,✔✔An over treatment of the skin characterized by blistering or epidermal separation,
caused by lateral pressure on the skin is known as? - ✔✔Nikolski Sign
✔✔When tissue has been injured, fluid escapes the blood vessels to surround the
damaged tissue. This is referred to as? - ✔✔Edema
✔✔The common type of laser used for hair removal is? - ✔✔Pulsed
✔✔Total destruction of tissue using laser energy is known as? - ✔✔photoablation
✔✔Laser is ineffective on hair that has? - ✔✔Little to no pigment
✔✔The energy level of a laser, measured in joules is known as? - ✔✔Energy fluence
✔✔Lightwaves that travel in perfect unison, parallel and in the same direction are
known as? - ✔✔Coherent light
✔✔Optical density labeling on laser safety eyewear refers to? - ✔✔the degree to which
a refractive medium retards transmitted rays of light
✔✔An allergic phototoxic reaction can occur up to how many hours post-treatment? -
✔✔24
✔✔Which part of the body is most vulnerable to laser light? - ✔✔Eyes (cornea, retina,
and lens)
✔✔What is used to cool the inside of most pulsed lasers during operation? - ✔✔Distilled
water
✔✔What is the chromophore when using the Nd:YAG laser for hair removal? -
✔✔Melanin in the hair shaft and bulb
✔✔What is the FDA class that presents both a direct and reflected hazard? - ✔✔Class
IV
✔✔What is considered a natural chromophore for hair removal lasers? - ✔✔melanin in
the hair shaft and bulb
✔✔Hair removal lasers are effective on which types of hair follicles? - ✔✔Curved
Distorted
Straight
, ✔✔What is most likely the cause of red, itchy bumps in the treatment area 10-14 days
after a patient's laser hair removal treatment? - ✔✔Detached hair becoming trapped
under the skin
✔✔Laser hair removal is least effective on follicles in what stage of development? -
✔✔Telogen
✔✔The voluntary nationally recognized group establishing standards for equipment use
is known as? - ✔✔American National Standards Institute (ANSI)
✔✔types of epidermal cooling - ✔✔Bulk - gel (topical)
contact - a window cooled by circulating liquid
cryogen spray - applied pre-laser pulse
air - zimmer cooler
✔✔LHR on patients with a Fitzpatrick of V & VI requires? - ✔✔Longer wavelengths
(diode 810nm or Nd:YAG 1064nm)
✔✔Who is considered to be the "father of lasers" in medicine? - ✔✔Leon Goldman
✔✔Components of the laser include - ✔✔A flashlamp/high intensity non-coherent light
source, Lasing medium, Fiber optics and lenses
✔✔What are the properties of light when it reacts with tissue? - ✔✔Scatter
Transmission
Absorption
Reflection
✔✔What is the waiting period before laser treatment after a patient stops taking
Accutane? - ✔✔180 days (6months)
✔✔Longer laser lengths, penetrate the tissue - ✔✔Deeper
✔✔An increase in color in cells post treatment is referred to as? -
✔✔Hyperpigmentation
✔✔The duration on the pulse from a laser is known as? - ✔✔Pulse width
✔✔What is most critical for protecting the skin during laser hair removal? - ✔✔Cooling
the skin
✔✔What is considered the chromophore when a laser is used to treat red spider veins?
- ✔✔Oxyhemoglobin (blood)
