Electrolysis IBEC+Laser STATE BOARD Practice test with Answers 100% Correct Laser stands for what? ✔✔ - Light Amplification by Stimulated Emission of Radiation What is the distance measured in nanometers between two peaks or two troughs known as? ✔✔ - Wave length Light of only one color & one specific wavelength is known as? ✔✔ - Monochromatic Refraction is also known as what? ✔✔ - Transmission The process where by a newly created photon of light (generated through amplification) acquires energy equal t o the photons that created it is known as? ✔✔ - Stimulated Emission The states of equilibrium or middle state of light ✔✔ - Metastable State Who theorized stimulated emission? ✔✔ - Albert Einstein The part of the laser that contains the active medium is called? ✔✔ - Resinator cavity What are the states of light in stimulated emission? ✔✔ - Ground State Excited State Singlet State Metastable State Alexandrite laer is in the visible light spectrum at what wavelength? ✔✔ - 755 nm The Nd:YAG laser falls in the invisible light spectrum with a wavelength of what? ✔✔ - 1064 nm What type of wave is used in laser hair removal? ✔✔ - Pulsed wave A chromophore is also know at what? ✔✔ - Target The chromophore absorbs what? ✔✔ - Energ y Goggles worn by the patient and practitioner must be approved by which group? ✔✔ - ANSI (American National Standard Institute) for Class 3B and Class 4 Lasers Each laser wavelength is what to its machine? ✔✔ - Specific What are the parameters when d oing laser hair removal? ✔✔ - Wavelength Spot Size Fluence Pulse Width Pulsed lasers allow for selective heating of specific targets, this is also known as? ✔✔ - Selective Photothermolysis The rate/amount of energy delivered within a given area is know n as? ✔✔ - Fluence An increase in fluence equals an increase in what? ✔✔ - Heat. Resulting in more damage The length of time the light/energy is in contact with the target that is measured in milliseconds (ms): ✔✔ - Pulse width/Pulse duration If the time of pulse duration is changed from milliseconds to nanoseconds the laser is what? ✔✔ - Q Switched A Q switched laser is used for what? ✔✔ - Tattoo removal Which skin types can tolerate an Alex laser? ✔✔ - 1-4 Which skin types can tolerate a Nd:YAG laser? ✔✔ - All skin types Which skin type should only have electrolysis and no laser? ✔✔ - Type 1 If the pulse width is greater than the thermal relaxation time it results in? ✔✔ - A burn If the pulse width is less than or equal to the ther mal relaxation time it results in? ✔✔ - Perfect hair removal Larger structures have __________ thermal relaxation times (TRT) ✔✔ - Longer Smaller structures have _______ thermal relaxation times (TRT) ✔✔ - Shorter What kind of pulse widths protect th e epidermis, penetrate deeper and cool more slowly? ✔✔ - Long Longer pulse widths are for what skin type? ✔✔ - 4-6 What kind of pulse widths are more aggressive and heat up and cool down quickly? ✔
✔ - Short Shorter pulse widths are for what skin type ? ✔✔ - 1-3 What percentage of follicles are damaged with each laser treatment? ✔✔ - 15% What is a long -term stable reduction of the growing hairs after a treatment regime? ✔✔ - Laser Hair Removal (LHR) What does the FDA call laser hair removal? ✔✔ - Permanent hair reduction What is the highest setting the skin can tolerate without damage called? ✔✔ - Fluence Threshold What is the highest setting the patient can tolerate without the treatment becoming impossible called? ✔✔ - Patient Threshold The amount of hair per one square centimeter is known as? ✔✔ - Hair density The higher the hair density, the _______ the fluence? ✔✔ - Lower What percentage of overlapping do you want when doing LHR? ✔✔ - 30% Darker/tanned skin requires what kind of fl uence? ✔✔ - Lower What should you never use to clean a patient's skin prior to LHR? ✔✔ - Alcohol Pulse duration is measured in what unit? ✔✔ - milliseconds (ms) Spot size is measured in what unit? ✔✔ - millimeters (mm) Repetition rate is measured i n 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 spe cific targets? ✔✔ - Selective photothermolysis For deeper laser penetration what should the practitioner do to the laser? ✔✔ - Change to a bigger spot size
✔ - Short Shorter pulse widths are for what skin type ? ✔✔ - 1-3 What percentage of follicles are damaged with each laser treatment? ✔✔ - 15% What is a long -term stable reduction of the growing hairs after a treatment regime? ✔✔ - Laser Hair Removal (LHR) What does the FDA call laser hair removal? ✔✔ - Permanent hair reduction What is the highest setting the skin can tolerate without damage called? ✔✔ - Fluence Threshold What is the highest setting the patient can tolerate without the treatment becoming impossible called? ✔✔ - Patient Threshold The amount of hair per one square centimeter is known as? ✔✔ - Hair density The higher the hair density, the _______ the fluence? ✔✔ - Lower What percentage of overlapping do you want when doing LHR? ✔✔ - 30% Darker/tanned skin requires what kind of fl uence? ✔✔ - Lower What should you never use to clean a patient's skin prior to LHR? ✔✔ - Alcohol Pulse duration is measured in what unit? ✔✔ - milliseconds (ms) Spot size is measured in what unit? ✔✔ - millimeters (mm) Repetition rate is measured i n 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 spe cific targets? ✔✔ - Selective photothermolysis For deeper laser penetration what should the practitioner do to the laser? ✔✔ - Change to a bigger spot size
