Laser test 2025 Questions and
Answers 100% Pass
pulse duration - ✔✔Time in sec or mil seconds the laser is in operation
milliseconds - ✔✔one thousandth of a second
Fluence - ✔✔Ephelis
Watts - ✔✔The rate energy delivered and measured in joules/seconds
Pulse Width - ✔✔time required for each pulse to complete its cycle
pulse delay - ✔✔responsible for sequencing and phasing.
Hertz - ✔✔Determines the number of pulses delivered per second.
radio frequency - ✔✔Oscillating the water molecules
LHR depth of penetration - ✔✔750-850nm
Class 1 Laser Classification - ✔✔Under normal operating condition
Class 2 Laser Classification - ✔✔-low powered visible lasers that pose a risk if viewed
directly for an extended amount of time.
Class 3 Laser Classification - ✔✔Produces visible and near- infrared light.
Class 4 Laser Classification - ✔✔Most hazardous of all lasers.
COPYRIGHT © 2025 BY GRACE AMELIA, ALL RIGHTS RESERVED 1
, Melanin - ✔✔color, or pigmentation, of the skin
Oxyhemoglobin - ✔✔Coagulation of proteins
water - ✔✔Vaporization, ablation, incision
Tattoo ink - ✔✔Fragmentation by acoustic shock
PDT (photodynamic therapy) - ✔✔Chemical reaction leading to destruction
Client end points: - ✔✔pero follicular edema, erythema, follicular rupture
Depth of penetration (DOP) - ✔✔Wavelength
Power
Spot size
monochromatic - ✔✔One color one wavelength
Collimated - ✔✔Stays together in a tight beam
coherent - ✔✔Waves with the same frequency
Non-coherent - ✔✔Electromagnetic waves are not synchronized or aligned with
eachother
Multiple wavelengths - ✔✔375-1600 nm
Non-collimated - ✔✔Scattered bean. Travels in various directions.
- ✔✔Cluster of pigment cells
bulb - ✔✔Hair begins here. Below derma layer
Nevi - ✔✔Mole, Nevis, common pigmented skin lesion
Papilla - ✔✔vascular structure that provides nutrients
COPYRIGHT © 2025 BY GRACE AMELIA, ALL RIGHTS RESERVED 2
Answers 100% Pass
pulse duration - ✔✔Time in sec or mil seconds the laser is in operation
milliseconds - ✔✔one thousandth of a second
Fluence - ✔✔Ephelis
Watts - ✔✔The rate energy delivered and measured in joules/seconds
Pulse Width - ✔✔time required for each pulse to complete its cycle
pulse delay - ✔✔responsible for sequencing and phasing.
Hertz - ✔✔Determines the number of pulses delivered per second.
radio frequency - ✔✔Oscillating the water molecules
LHR depth of penetration - ✔✔750-850nm
Class 1 Laser Classification - ✔✔Under normal operating condition
Class 2 Laser Classification - ✔✔-low powered visible lasers that pose a risk if viewed
directly for an extended amount of time.
Class 3 Laser Classification - ✔✔Produces visible and near- infrared light.
Class 4 Laser Classification - ✔✔Most hazardous of all lasers.
COPYRIGHT © 2025 BY GRACE AMELIA, ALL RIGHTS RESERVED 1
, Melanin - ✔✔color, or pigmentation, of the skin
Oxyhemoglobin - ✔✔Coagulation of proteins
water - ✔✔Vaporization, ablation, incision
Tattoo ink - ✔✔Fragmentation by acoustic shock
PDT (photodynamic therapy) - ✔✔Chemical reaction leading to destruction
Client end points: - ✔✔pero follicular edema, erythema, follicular rupture
Depth of penetration (DOP) - ✔✔Wavelength
Power
Spot size
monochromatic - ✔✔One color one wavelength
Collimated - ✔✔Stays together in a tight beam
coherent - ✔✔Waves with the same frequency
Non-coherent - ✔✔Electromagnetic waves are not synchronized or aligned with
eachother
Multiple wavelengths - ✔✔375-1600 nm
Non-collimated - ✔✔Scattered bean. Travels in various directions.
- ✔✔Cluster of pigment cells
bulb - ✔✔Hair begins here. Below derma layer
Nevi - ✔✔Mole, Nevis, common pigmented skin lesion
Papilla - ✔✔vascular structure that provides nutrients
COPYRIGHT © 2025 BY GRACE AMELIA, ALL RIGHTS RESERVED 2
