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Laser Hair Removal Exam Questions and Answers: Pass Guaranteed!, Exams of Cosmetology

Electrology Institute of New England (EINE)Cosmetology

A comprehensive set of questions and answers related to laser hair removal, covering various aspects such as laser physics, skin reactions, safety protocols, and treatment parameters. It includes topics like selective photothermolysis, laser wavelengths, chromophores, pulse duration, and potential complications. The material is designed to test and reinforce understanding of the principles and practices involved in laser hair removal procedures, making it a valuable resource for students and practitioners in the field of cosmetic dermatology. It also covers the fitzpatrick scale, different laser types, and the importance of cooling the skin during treatment. Useful for those preparing for certification exams or seeking to deepen their knowledge of laser hair removal techniques. It also addresses the different stages of hair growth and their impact on treatment effectiveness, as well as the role of various laser components and their functions.

Typology: Exams

2024/2025

Available from 05/15/2025

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LASER/IBEC – ISOLATION EXAM QUESTIONS
WITH CORRECT VERIFIED SOLUTIONS 100%
GUARANTEED PASS (2025/2026)
1. Who is selective phototerhmolysis accredited to? - ANS ✓Rox
Anderson
2. For deeper laser penetration what should the practitioner do to the
laser? - ANS ✓Change to a bigger spot size
3. The primary reason for using cooling devices during laser hair
removal is? - ANS ✓Allows for higher and more effective fluences to be
used while sparing the epidermis
4. During the initial consultation, the patient should be informed that
the process will take how long for laser hair removal? - ANS ✓A series
of treatments
5. The principle that says energy must be absorbed by an object in
order to produce an effect is called? - ANS ✓Grotthuss-Draper law
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Download Laser Hair Removal Exam Questions and Answers: Pass Guaranteed! and more Exams Cosmetology in PDF only on Docsity!

LASER/IBEC – ISOLATION EXAM QUESTIONS

WITH CORRECT VERIFIED SOLUTIONS 100%

GUARANTEED PASS (2025/2026)

  1. Who is selective phototerhmolysis accredited to? - ANS ✓Rox Anderson
  2. For deeper laser penetration what should the practitioner do to the laser? - ANS ✓Change to a bigger spot size
  3. The primary reason for using cooling devices during laser hair removal is? - ANS ✓Allows for higher and more effective fluences to be used while sparing the epidermis
  4. During the initial consultation, the patient should be informed that the process will take how long for laser hair removal? - ANS ✓A series of treatments
  5. The principle that says energy must be absorbed by an object in order to produce an effect is called? - ANS ✓Grotthuss-Draper law
  1. What is laser light? - ANS ✓Monochromatic light
  2. Laser is equivalent to which of the following modalities? - ANS ✓Thermolysis
  3. An element has the ability to produce laser when it is in which state? - ANS ✓Metastable state
  4. What are the positive reactions to the skin indicating a successful LHR treatment? - ANS ✓Perifollicular erythema, perifollicular edema
  5. Incandescent light is an example of? - ANS ✓Incoherent light
  6. A requirement for foot switches that directly pulse the laser is that they be? - ANS ✓Hooded
  7. The effect of skin turning red after treatment is referred to as? - ANS ✓Erythema
  8. An over treatment of the skin characterized by blistering or epidermal separation, caused by lateral pressure on the skin is known as? - ANS ✓Nikolski Sign
  1. Optical density labelling on lair safety eyewear refers to? - ANS ✓The amount of protection against a specific wavelength
  2. An allergic phototoxic reaction can occur up to how many hours post-treatment? - ANS ✓ 24
  3. Which part of the body is most vulnerable to laser light? - ANS ✓Eyes
  4. The "retinal hazard region" is laser light that is what type and wavelength? - ANS ✓visible & near infrared spectrum between 400 - 1400 nm
  5. What is used to cool the inside of most pulsed lasers during operation? - ANS ✓Distilled water
  6. What is the chromophore when using the Nd:Yag laser for hair removal? - ANS ✓Melanin in the hair shaft and bulb
  7. What is the FDA class that presents both a direct and reflected hazard? - ANS ✓Class IV
  1. What is considered a natural chromophore for hair removal lasers? - ANS ✓melanin in the hair shaft and bulb
  2. Hair removal lasers are effective on which types of hair follicles? - ANS ✓Curved Distorted Straight
  3. 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? - ANS ✓Detached hair becoming trapped under the skin
  4. Laser hair removal is least effective on follicles in what stage of development? - ANS ✓Telogen
  5. The voluntary nationally recognized group establishing standards for equipment use is known as? - ANS ✓American National Standards Institute (ANSI)
  6. The application of a clear, cold gel to the skin prior to laser hair removal is an example of? - ANS ✓Bulk cooling
  1. The duration on the pulse from a laser is known as? - ANS ✓Pulse width
  2. What is most critical for protecting the skin during laser hair removal? - ANS ✓Cooling the skin
  3. What is considered the chromophore when a laser is used to treat red spider veins? - ANS ✓Oxyhemoglobin
  4. Permanent hair reduction according to the FDA is defined as? - ANS ✓A long term stable reduction in the number of hair regrowing after a treatment regime
  5. What is the correct definition of "chromophore" as it relates to laser treatment in general? - ANS ✓The object that absorbs the light energy
  6. What can occur with excess heating of the skin? - ANS ✓Hypo/Hyper-pigmentation Hypertrophies
  1. A basic Fitzpatrick scale takes into account what? - ANS ✓Skin color Natural hair color Sensitivity to sunlight
  2. For best results during laser hair removal treatments, follicles should be in what stage? - ANS ✓late Anagen 6
  3. What is the primary reason that multiple treatments are necessary in laser hair removal? - ANS ✓Not all follicles are in the optimum growth stage
  4. Aside from scalp follicles, what is the typical length of the anagen stage in most other body areas? - ANS ✓ 4 - 8 weeks
  5. What is the correct range for visible light in the electromagnetic spectrum? - ANS ✓ 390 - 700 nanometres
  6. Which laser would be used to remove hair form a patient with very dark skin? - ANS ✓Diode or Nd:YAG laser
  7. A watt per second: - ANS ✓Joule
  1. The longer pulse widths are considered more effective because? - ANS ✓They penetrate deeper into the tissue
  2. Laser stands for what? - ANS ✓Light Amplification by Stimulated Emission of Radiation
  3. What is the distance measured in nanometers (nm) between two peaks or two troughs known as? - ANS ✓Wavelength
  4. Light of only one color & one specific wavelength is known as? - ANS ✓Monochromatic
  5. Refraction is also known as what? - ANS ✓Transmission
  6. What are the properties of light when it reacts to skin tissue? - ANS ✓Scatter Transmission Absorption Reflection
  1. The process where by a newly created photon of light (generated through amplification) acquires energy equal to the photons that created it is known as? - ANS ✓Stimulated Emission
  2. The states of equilibrium or middle state of light: - ANS ✓Metastable State
  3. Who theorized stimulated emission? - ANS ✓Einstein
  4. The part of the laser that contains the active medium is called?
    • ANS ✓Resinator cavity
  5. What are the states of light in stimulated emission? - ANS ✓Ground State Excited State Singlet State Metastable State
  6. Ruby Laser is in the visible light spectrum at what wavelength?
    • ANS ✓694 nm
  1. Pulsed lasers allow for selective heating of specific targets (chromophore), this is also known as? - ANS ✓Selective Photo thermolysis
  2. The rate/amount of energy delivered within a given area is known as? - ANS ✓Fluence
  3. An increase in fluence equals an increase in what? - ANS ✓Heat - Resulting in more damage
  4. The length of time the light/energy is in contact with the target that is measured in milliseconds (ms): - ANS ✓Pulse width/Pulse duration
  5. If the time of pulse duration is changed from milliseconds (ms) to nanoseconds (ns) the laser is what? - ANS ✓Q Switched
  6. A Q switched laser is used for what? - ANS ✓Tattoo removal
  7. What is the purpose of cooling the skin during laser hair removal? - ANS ✓Protect the epidermis & patient comfort
  1. Which skin types can tolerate an Alexandrite laser? - ANS ✓ 1 - 4
  2. Which skin types can tolerate a Nd:Yag laser? - ANS ✓All skin types
  3. Which skin type should only have electrolysis and no laser? - ANS ✓Type 1
  4. The time it takes a target/chromophore to lose 50% of the heat absorbed from the pulse is known as? - ANS ✓Thermal Relaxation Time (TRT)
  5. If the pulse width is greater than the thermal relaxation time it results in? - ANS ✓a burn
  6. If the pulse width is less than or equal to the thermal relaxation time it results in? - ANS ✓Perfect hair removal
  7. Larger structures have __________ thermal relaxation times (TRT)
    • ANS ✓Longer
  1. What is the highest setting the skin can tolerate without damage called? - ANS ✓Fluence Threshold
  2. What is the height setting the patient can tolerate without the treatment becoming impossible called? - ANS ✓Patient Threshold
  3. The amount of hair per one square centimeter is known as? - ANS ✓Hair density
  4. The higher the hair density, the _______ the fluence? - ANS ✓Lower
  5. What percentage of overlapping do you want when doing LHR?
- ANS ✓30%
  1. Darker/tanned skin requires what kind of fluence? - ANS ✓Lower
  2. What should you never use to clean a patient's skin prior to LHR? - ANS ✓Alcohol
  1. Pulse duration is measured in what unit? - ANS ✓milliseconds (ms)
  2. Spot size is measured in what unit? - ANS ✓millimeters (mm)
  3. Repetition rate is measured in what unit? - ANS ✓Hertz (Hz)
  4. Who is the considered the grandfather of laser and was the first person to use water to cool the skin during laser? - ANS ✓Rox Anderson
  5. The formulation for fluence is? - ANS ✓Joules (J/cm²)
  6. What kind of lasers allow for selective heating of specific targets? - ANS ✓Selective photothermolysis