Laser Hair Removal Exam Questions with 100% Correct Answers | Verified | Updated 2024

Laser Hair Removal Exam Questions with 100% Correct Answers | Verified | Updated 2024 What are the layers of the skin? epidermis, dermis, hypodermis What are the 2 classifications of hair? Vellus and terminal hair Pulse duration and fluence for fitz 1,2,3 -Use higher fluences -Shorter pulse duration Pulse duration and fluence for fitz 4,5 -Use a lower fluence -Use a longer pulse duration Normal systemic changes -Puberty -Menopause -Pregnancy What are the factors that activate hair growth? -Increased blood supply to the area (topical stimulation)- accelerates -Hormone stimulation initiates and accelerates What is a chromophore for laser hair removal? Melanin Examples of medical laser wavelengths, the different platforms -Ruby: 694 nm (red light, don't use anymore) -Alexandrite: 755 nm (green light, skin types 1,2,3) -Diode: 800-810 nm (invisible light, skin types 1,2,3,4) -Nd: YAG 1064 nm (neodymium: yttrium-aluminum-garnet) (invisible light, all skin types, not the best but safest for skin types 4 and 5) What are the phases of hair growth anagen, catagen, telogen Anagen -Active hair growth is occurring -in early anagen, the follicle is growing and starting to deepen -Hair is beginning to grow but has not yet reached the surface of the skin -The mid-late anagen follicle has reached its maximum depth. The hair is fully visible terminal hair on the surface of the skin. -The hair shaft bulb is dark or black pigmented and very moist -Dermal papilla directs and supports hair growth, enclosed by hair matrix Catagen -Brief transitional stage -Last only a few days to a few weeks -Hair folicle seperates from the papilla -The hair shaft bulb is lighter or brown pigmented and lighter -Hair folicle shorts 1/3 of its former length -In late catagen, the thin cord of epidermal cells attaching the dermal papilla to the shrunken hair reacts upwards, followed by underlyin g hair papilla, which also movesz upwards. Telogen