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Question 1Scientific Concepts and Infection Control
Which of the following is a bacterium that commonly causes skin infections and is often found on the skin and in the nose of healthy people?
- Human immunodeficiency virus
- Staphylococcus aureus Correct answer.
- Hepatitis B virus
- Trichophyton rubrum
Explanation
Staphylococcus aureus is a bacterium that colonizes human skin and nasal passages and can cause boils, folliculitis, and other infections, especially when the skin barrier is broken. Viruses and fungi are different classes of organisms with different structures and treatment approaches.
Question 2Scientific Concepts and Infection Control
A barber is about to use a straight razor on a client. Which action best describes the required level of decontamination for the razor between clients?
- Clean and then disinfect the blade with an EPA-registered hospital disinfectant Correct answer.
- Wipe the blade with a dry paper towel
- Spray the blade lightly with room freshener
- Rinse the blade in warm water and dry it with a towel
Explanation
Implements that contact blood or body fluids must be cleaned of debris and then treated with an EPA-registered disinfectant effective against bloodborne pathogens. Cleaning alone removes soil but does not kill microorganisms, so disinfection is the required second step.
Question 3Scientific Concepts and Infection Control
What is the primary purpose of a Material Safety Data Sheet (SDS) in a barbershop?
- To advertise the salon's services to clients
- To provide information about the hazards, handling, and safe use of a chemical product Correct answer.
- To list the prices of retail products
- To record each client's haircut preferences
Explanation
A Safety Data Sheet supplies standardized information about a product's hazards, safe handling, storage, first-aid measures, and disposal. Barbers must keep these sheets available for products such as disinfectants and chemicals used in the shop.
Question 4Scientific Concepts and Infection Control
Which of these is classified as a parasite that can infest the human scalp?
- Herpes simplex
- Tinea barbae
- Furuncle
- Pediculosis capitis Correct answer.
Explanation
Pediculosis capitis is an infestation of the scalp by head lice, which are parasites that feed on blood. The other conditions are fungal or bacterial infections of the skin, not parasite infestations.
Question 5Scientific Concepts and Infection Control
A barber notices a client has an inflamed, pus-filled boil on the neck. What is the most appropriate action?
- Refer the client to a physician and do not perform services on the area Correct answer.
- Apply a hot towel and continue the service
- Shave closely over the boil to drain it
- Cover the boil with a clean towel and proceed
Explanation
A boil is a contagious bacterial infection, and barbers must not treat or work over infected skin because of the risk of spreading infection. The client should be referred for medical care before services resume.
Question 6Scientific Concepts and Infection Control
Which agency registers disinfectants used in barbershops for effectiveness against pathogens?
- The Environmental Protection Agency Correct answer.
- The Department of Labor
- The Food and Drug Administration
- The Federal Trade Commission
Explanation
The EPA registers disinfectant products and reviews the claims on their labels, including which pathogens they are effective against. Barbers should select disinfectants with an EPA registration number and hospital-grade claims.
Question 7Scientific Concepts and Infection Control
What does the term 'pathogen' mean?
- A harmless microorganism used in food production
- A chemical used to sterilize tools
- A type of skin cell
- A disease-causing microorganism Correct answer.
Explanation
A pathogen is any microorganism capable of causing disease in a host. Bacteria, viruses, fungi, and parasites can all be pathogens when they invade and harm body tissues.
Question 8Scientific Concepts and Infection Control
A barber is washing hands before a service. Which practice meets standard hygiene expectations?
- Using warm running water and soap, then drying with a clean paper towel Correct answer.
- Wiping hands on the cape
- Rinsing fingers quickly under cold water without soap
- Using hand sanitizer only after touching soiled tools
Explanation
Proper handwashing uses warm running water and soap, with friction over all surfaces of the hands and wrists, followed by drying with a clean single-use towel. This mechanical removal of soil and microorganisms is the most important infection-control practice in the shop.
Question 9Scientific Concepts and Infection Control
Which of the following is a bloodborne pathogen of major concern in barbering?
- Hepatitis B virus Correct answer.
- Candida albicans
- Streptococcus pyogenes
- Rhinovirus
Explanation
Hepatitis B is a bloodborne virus that can be transmitted through contact with infected blood, making it a key concern when shaving or handling sharp implements. Barbers reduce risk by avoiding cuts and disinfecting all blood-contacting tools.
Question 10Scientific Concepts and Infection Control
A client with a fresh cut on the scalp arrives for a haircut. How should the barber handle the situation?
- Postpone the service or avoid the area and follow standard precautions if service proceeds Correct answer.
- Refuse all service permanently
- Apply styptic powder and shave directly over the cut
- Proceed normally without any special precautions
Explanation
Open wounds increase the risk of transmitting bloodborne pathogens in both directions, so service should be postponed when possible. If service proceeds, the barber must follow standard precautions, avoid the wound, and disinfect any contaminated tools.
Question 11Scientific Concepts and Infection Control
What is the difference between disinfection and sterilization?
- Disinfection kills all microorganisms including spores, while sterilization kills only some
- Sterilization is only for skin, while disinfection is only for tools
- They are identical processes
- Disinfection destroys most pathogens on surfaces, while sterilization destroys all microorganisms including spores Correct answer.
Explanation
Disinfection uses chemical agents to destroy most pathogenic microorganisms on surfaces and implements, but it may not eliminate bacterial spores. Sterilization is a more rigorous process that destroys all microbial life, including spores, and is used for items that penetrate the skin.
Question 12Scientific Concepts and Infection Control
Which practice best prevents cross-contamination between clients when using combs and brushes?
- Storing combs loose in a drawer
- Using the same comb for all clients after a quick wipe
- Rinsing tools only at the end of the day
- Cleaning and disinfecting implements after each client Correct answer.
Explanation
Implements that contact hair and skin should be cleaned to remove debris and then disinfected after every client to break the chain of cross-contamination. Storing tools in a clean, covered area after disinfection keeps them from being recontaminated.
Question 13Scientific Concepts and Infection Control
A disinfectant label states a contact time of ten minutes. What does this mean?
- The product must be diluted for ten minutes before use
- The tool should be rinsed for ten minutes afterward
- The implement must stay wet with the product for ten minutes to achieve the labeled kill claim Correct answer.
- The product can be used on skin for ten minutes
Explanation
Contact time, also called dwell time, is the period an item must remain wet with the disinfectant for the product to work as labeled. Cutting the time short means the claimed pathogens may survive on the implement.
Question 14Scientific Concepts and Infection Control
Why are fungal infections such as ringworm a concern in barbershops?
- Fungal spores can survive on tools and surfaces and spread between clients Correct answer.
- Fungi only affect plants
- Fungi require no treatment and resolve instantly
- Fungi are easily killed by water alone
Explanation
Fungal spores are hardy and can persist on contaminated tools, capes, and surfaces, allowing transmission to other clients. Proper cleaning and use of an EPA-registered fungicidal disinfectant are needed to reduce this risk.
Question 15Scientific Concepts and Infection Control
A barber uses a razor that accidentally nicks a client and draws blood. What should the barber do with the razor?
- Rinse it in the handwashing sink and put it away
- Return it to the drawer for later use
- Wipe it on the cape and continue
- Clean it and disinfect it before reuse, following bloodborne pathogen procedures Correct answer.
Explanation
Any implement contaminated with blood must be handled carefully, cleaned to remove blood and debris, and then disinfected with an EPA-registered product effective against bloodborne pathogens. The contaminated tool must not be returned to storage or reused before this process.
Question 16Scientific Concepts and Infection Control
Which of the following best describes how bacteria multiply?
- By fusing with human skin cells
- By binary fission, splitting into two cells Correct answer.
- By producing spores that become insects
- By budding off from viruses
Explanation
Bacteria reproduce asexually through binary fission, in which one cell divides into two daughter cells. Under favorable conditions such as warmth and moisture, populations can grow rapidly, which is why contaminated tools and hands are a concern.
Question 17Scientific Concepts and Infection Control
Which factor most increases the growth of microorganisms on a damp towel left on a counter?
- Warmth, moisture, and available nutrients Correct answer.
- Bright lighting
- Airtight metal storage
- A dry, cool environment
Explanation
Microorganisms need moisture, warmth, and nutrients to multiply, and a damp towel provides all three. Removing any one of these conditions, such as by drying or laundering the towel, slows microbial growth.
Question 18Scientific Concepts and Infection Control
A barber is choosing between two EPA-registered disinfectants. One is labeled hospital-grade with a tuberculocidal claim, and the other is a general-purpose cleaner. Which should be used for blood-contaminated implements?
- The hospital-grade tuberculocidal disinfectant Correct answer.
- Either one, since both are EPA-registered
- The general-purpose cleaner
- Neither, because only heat sterilization is acceptable
Explanation
For items contaminated with blood, the disinfectant should carry a hospital-grade claim and be effective against the pathogens of concern, including tuberculosis bacteria as a benchmark for bloodborne pathogen efficacy. A general-purpose cleaner without a disinfectant claim does not meet this standard.
Question 19Scientific Concepts and Infection Control
Which statement about viruses is accurate?
- Viruses are a type of fungus
- Viruses are smaller than bacteria and require a host cell to reproduce Correct answer.
- Viruses are the largest microorganisms and reproduce on their own
- Viruses are killed by antibiotics
Explanation
Viruses are much smaller than bacteria and cannot reproduce independently; they must invade a host cell and use its machinery to replicate. This is why antibiotics, which target bacterial processes, are ineffective against viral infections.
Question 20Scientific Concepts and Infection Control
A client reports intense itching and notices tiny white specks on the hair shafts. Which condition should the barber suspect, and what is the appropriate response?
- Folliculitis; shave the area closely
- Dandruff; proceed with a normal shampoo
- Head lice; refer the client and disinfect all implements and linens Correct answer.
- Ringworm; apply a medicated cream
Explanation
Itching with small white nits attached to hair shafts suggests head lice infestation, which is contagious and spread by contact with hair and shared items. The barber should refer the client for treatment and disinfect implements and launder linens to prevent spread.
Question 21Scientific Concepts and Infection Control
A new bottle of disinfectant is being prepared. Which practice follows manufacturer directions?
- Measuring and diluting exactly as the label specifies Correct answer.
- Mixing it with another disinfectant to boost strength
- Using it undiluted regardless of the label
- Diluting it with an arbitrary amount of tap water
Explanation
Disinfectant concentration must follow the label exactly, because over-dilution reduces efficacy and over-concentration may be hazardous. Mixing products can create toxic reactions or inactivate the active ingredients.
Question 22Scientific Concepts and Infection Control
Which practice is appropriate for handling a blood-soaked towel after a service?
- Rinse it in the handwashing sink and hang it to dry
- Shake it out and reuse it
- Place it in a labeled, leak-resistant container for laundering Correct answer.
- Discard it in an open trash can
Explanation
Blood-contaminated linens should be handled as little as possible and placed in a labeled, leak-resistant container until they can be laundered with detergent and hot water or according to label directions. Shaking or open disposal can spread contamination.
Question 23Scientific Concepts and Infection Control
A barber develops a red, itchy rash between the fingers after several days of work. Which explanation is most consistent with occupational exposure?
- A parasite that lives only in soil
- A viral infection acquired from the client's hair
- A fungal infection such as tinea manuum acquired through contact with contaminated tools or skin Correct answer.
- An allergic reaction that cannot be work-related
Explanation
Fungal infections such as tinea manuum can be acquired through direct or indirect contact with dermatophytes on contaminated tools or infected skin. Barbers should wear gloves where appropriate, disinfect implements, and seek medical evaluation for persistent rashes.
Question 24Scientific Concepts and Infection Control
A shop uses UV light cabinets to store disinfected combs. What is the correct way to understand their role?
- UV cabinets sterilize tools and replace chemical disinfection
- UV cabinets may help keep cleaned and disinfected tools covered but do not replace cleaning and disinfection Correct answer.
- UV cabinets can disinfect soiled tools without prior cleaning
- UV cabinets are required by federal law
Explanation
UV cabinets can help store cleaned and disinfected implements in a covered environment, but they are not a substitute for cleaning and chemical disinfection. Organic debris shields microorganisms from UV light, so tools must be cleaned first.
Question 25Scientific Concepts and Infection Control
Which sequence correctly describes decontamination of a reusable razor after use?
- Rinse, then store, then disinfect before the next client
- Clean to remove debris, then disinfect with the labeled contact time, then store covered Correct answer.
- Disinfect, then clean, then dry
- Sanitize, then sterilize, then clean
Explanation
Effective decontamination begins with cleaning to remove hair, skin, and blood, because soil interferes with disinfectant action. The implement is then fully immersed or wetted with the disinfectant for the labeled contact time, dried, and stored in a clean, covered area.
Question 26Scientific Concepts and Infection Control
A barber is reviewing how infectious agents are classified. Which statement correctly describes a parasite?
- An organism that lives on or within a host and draws nutrients from it Correct answer.
- A single-celled organism that reproduces by dividing in two
- A nonliving particle that needs a host cell to replicate
- A plant-like growth that feeds on dead tissue
Explanation
A parasite is an organism that lives on or inside another organism, called the host, and obtains nourishment from it at the host's expense. Examples relevant to barbering include head lice and scabies mites, which can spread through shared combs or close contact. Parasites differ from bacteria and viruses in both size and biology, so control measures must target the organism type.
Question 27Scientific Concepts and Infection Control
Which statement about how bacteria respond to disinfectants is accurate?
- All bacteria are equally easy to kill with any disinfectant
- Bacteria cannot survive on dry surfaces such as clipper blades
- Disinfectants work only on bacteria that cause visible skin lesions
- Bacterial spores are generally more resistant to disinfectants than growing cells Correct answer.
Explanation
Bacterial spores are dormant, highly resistant forms that survive many disinfectants and environmental stresses far better than actively growing bacterial cells. This is why some products carry a sporicidal claim while ordinary low-level disinfectants do not. Barbers should match the product to the organisms it is labeled to kill and follow the stated contact time.
Question 28Scientific Concepts and Infection Control
A barber notices that a bottle of disinfectant has no label and the original container was discarded. What is the most appropriate action?
- Smell it to confirm which chemical it is
- Dilute it with water to stretch the supply
- Discard it because its contents cannot be verified Correct answer.
- Use it quickly before it degrades further
Explanation
Unlabeled chemicals cannot be safely identified, diluted correctly, or matched to a contact time, and using them risks injury and inadequate disinfection. Regulatory guidance requires that disinfectant containers remain labeled with the product name and directions. The safe course is to discard the unidentified liquid according to local rules and replace it with a properly labeled product.
Question 29Scientific Concepts and Infection Control
Which practice correctly describes cleaning versus disinfecting a pair of clippers?
- Cleaning and disinfection are interchangeable terms for the same step
- Wiping with a dry cloth alone is sufficient disinfection
- Cleaning removes visible debris while disinfection destroys pathogens on the surface Correct answer.
- Disinfection should be done first, then cleaning to remove residue
Explanation
Cleaning physically removes hair, skin, and product residue, while disinfection uses a chemical to destroy pathogens on the item. Debris left on a tool can shield microorganisms and interfere with the disinfectant reaching the surface. Cleaning therefore comes before disinfection, and both steps are required for proper decontamination.
Question 30Scientific Concepts and Infection Control
A barber is preparing a quaternary ammonium disinfectant from concentrate. Which step is most important for the product to work as labeled?
- Mixing it stronger than the label states for extra safety
- Adding soap to the solution to improve wetting
- Measuring the dilution exactly as directed on the label Correct answer.
- Storing the mixture in an unmarked spray bottle
Explanation
Disinfectants are formulated and tested at a specific dilution, and using more or less than directed can reduce effectiveness or damage tools. The label states the correct ratio and contact time that were validated for the product's claims. Measuring accurately and recording the mixing date keeps the solution within its useful life.
Question 31Scientific Concepts and Infection Control
Which statement best explains why a barber should avoid touching the face, nose, or mouth while working with clients?
- It causes the disinfectant to evaporate faster
- It reduces the shine of styling products
- It transfers microorganisms from hands to mucous membranes Correct answer.
- It slows the pace of the service
Explanation
Mucous membranes of the eyes, nose, and mouth are common portals of entry for pathogens, and hands frequently carry organisms picked up from tools, surfaces, and clients. Touching the face moves those organisms to a site where infection is more likely. Hand hygiene before and after client contact reduces this transfer.
Question 32Scientific Concepts and Infection Control
A barber has a small, non-bleeding scrape on the hand and will be shampooing a client. What is the best practice?
- Proceed bare-handed because the scrape is not bleeding
- Rinse the scrape with disinfectant and continue
- Ask the client to hold the bandage in place
- Cover the scrape with a waterproof bandage and wear gloves Correct answer.
Explanation
Any break in the skin is a portal of entry for pathogens, and wet work such as shampooing increases exposure for both barber and client. A waterproof bandage seals the wound, and gloves add a barrier that keeps blood and body fluids from contact. This combination protects the barber and prevents transfer to the client.
Question 33Scientific Concepts and Infection Control
Which statement correctly describes the role of an autoclave in a barbershop?
- It chemically disinfects plastic combs without heat
- It removes hair and debris from tools before disinfection
- It stores disinfected tools in a sterile environment indefinitely
- It uses high-pressure steam to sterilize items that can withstand heat and moisture Correct answer.
Explanation
An autoclave sterilizes by exposing items to high-pressure saturated steam at elevated temperature, which destroys microorganisms including spores. Only items that tolerate heat and moisture, such as certain metal tools, can be processed this way. It is a sterilization method, not a cleaning step or storage cabinet.
Question 34Scientific Concepts and Infection Control
A barber wants to confirm that a disinfectant is appropriate for a blood exposure on a nonporous tool. Which product claim should the barber look for on the label?
- A no-rinse formula
- A tuberculocidal or bloodborne pathogen claim Correct answer.
- A rust-inhibiting additive
- A fragrance-free formula
Explanation
Bloodborne pathogens such as hepatitis B and HIV require a disinfectant with a claim against those organisms, often indicated by a tuberculocidal claim because the tubercle organism is harder to kill. Products labeled only for general sanitation may not be adequate after visible blood contact. The barber should check the label claims and follow the listed contact time.
Question 35Scientific Concepts and Infection Control
Which factor most directly determines how long a reusable tool must remain wet with disinfectant?
- The number of clients seen that day
- The contact time stated on the product label Correct answer.
- The temperature of the shop
- The color of the tool
Explanation
Each disinfectant is tested and registered with a specific contact time, and the tool must stay fully immersed or wet for that entire period to achieve the labeled kill. Shortening the time leaves pathogens viable even if the tool looks clean. The barber should set a timer or follow a written procedure to ensure compliance.
Question 36Scientific Concepts and Infection Control
A client has a scalp condition that the barber suspects is contagious. What is the most appropriate response?
- Refuse service politely and refer the client to a physician Correct answer.
- Double the amount of styling product to cover the area
- Proceed with the service and disinfect tools afterward
- Apply a medicated shampoo and continue
Explanation
Barbers are not trained or licensed to diagnose or treat skin and scalp disease, and serving a client with a suspected contagious condition risks spreading infection. The professional response is to decline the service respectfully and recommend medical evaluation. Tools and surfaces should still be cleaned and disinfected per routine practice.
Question 37Scientific Concepts and Infection Control
Which situation best illustrates indirect transmission of microorganisms in a barbershop?
- A client coughs into a tissue
- A client touches an infected comb left on the station Correct answer.
- A barber shakes hands with a client
- A barber sneezes near a client
Explanation
Indirect transmission occurs when a person contacts a contaminated object, called a fomite, rather than the infected person directly. A comb carrying pathogens from a previous client can transfer organisms to the next person who handles it. Proper cleaning and disinfection of tools breaks this chain.
Question 38Scientific Concepts and Infection Control
A barber is deciding how to store clean towels and capes between clients. Which practice best supports infection control?
- Keep clean linens in a closed cabinet apart from soiled items Correct answer.
- Reuse a cape for several clients if it looks clean
- Store clean towels in the restroom for convenience
- Stack clean linens on an open shelf beside used ones
Explanation
Clean linens must be separated from soiled items and protected from dust, moisture, and contamination, which a closed cabinet provides. Mixing clean and used linens allows pathogens to transfer to items that will contact clients. Soiled linens should go into a closed receptacle until laundered.
Question 39Scientific Concepts and Infection Control
A shop's written infection-control plan should include which element to be most useful in daily practice?
- Step-by-step procedures for cleaning, disinfection, and spill response Correct answer.
- The personal phone numbers of all staff
- A schedule of client appointments
- A list of every product the shop has ever ordered
Explanation
An effective infection-control plan translates rules into clear, repeatable procedures so staff perform each task the same correct way, including how to handle blood spills. Written steps also support training and consistency when staff change. Product lists, contact details, and appointment schedules do not direct infection-control actions.
Question 40Scientific Concepts and Infection Control
Which statement about hepatitis B in the barbering setting is accurate?
- It cannot survive outside the body for any period
- It can be prevented by vaccination and spreads through contact with infected blood Correct answer.
- It spreads mainly through contaminated food and water
- It is caused by a fungus that grows on damp tools
Explanation
Hepatitis B is a bloodborne virus, so exposure through cuts, nicks, or blood-contaminated tools is the relevant risk in barbering. A safe and effective vaccine provides protection for workers at risk. Standard precautions, including gloves and proper tool disinfection, further reduce exposure.
Question 41Hair and Scalp Care and Treatments
Which layer of the hair shaft contains melanin granules that give hair its natural color?
- The medulla
- The cortex Correct answer.
- The cuticle
- The follicle sheath
Explanation
The cortex is the thick middle layer of the hair shaft and holds the melanin pigment that determines natural color. Because pigment sits in the cortex, chemical color changes must reach this layer to work. The cuticle is the clear outer covering, and the medulla is the innermost core.
Question 42Hair and Scalp Care and Treatments
A client has a dry, flaky scalp with fine white flakes that brush off easily and no redness. Which condition does this most likely describe?
- Pediculosis capitis
- Pityriasis capitis simplex Correct answer.
- Pityriasis steatoides
- Tinea favosa
Explanation
Pityriasis capitis simplex is ordinary dry dandruff, marked by small white scales that loosen and fall from the scalp without inflammation. The flakes detach readily, which distinguishes it from greasy or infected conditions. Recognizing this pattern guides a mild scalp treatment rather than a medical referral.
Question 43Hair and Scalp Care and Treatments
What is the primary purpose of a scalp massage during a professional treatment?
- To strip natural oils from the scalp
- To increase blood circulation to the scalp Correct answer.
- To loosen and remove the hair cuticle
- To permanently straighten curly hair
Explanation
Scalp massage is performed mainly to stimulate circulation, which supports the health of the hair follicle and relaxes the client. Manipulations move the scalp over the underlying bone rather than pulling the hair. It is a comfort and conditioning service, not a chemical or structural change.
Question 44Hair and Scalp Care and Treatments
Which term describes hair that is abnormally dry, brittle, and lacks natural shine?
- Canities
- Fragilitas crinium Correct answer.
- Hypertrichosis
- Trichoptilosis
Explanation
Fragilitas crinium means brittle hair that breaks easily and has little elasticity or luster. It often results from overprocessing, heat, or harsh products. Trichoptilosis is split ends, canities is grayness, and hypertrichosis is excess hair growth.
Question 45Hair and Scalp Care and Treatments
What does the pH scale measure in a shampoo or scalp product?
- The speed the product lathers
- The amount of fragrance present
- The acidity or alkalinity of the product Correct answer.
- The thickness of the product
Explanation
The pH scale from 0 to 14 expresses how acidic or alkaline a substance is, with 7 being neutral. Hair and scalp prefer mildly acidic products near their natural pH. Knowing this helps the barber choose products that respect the acid mantle.
Question 46Hair and Scalp Care and Treatments
Which of these is a recognized warning sign that a scalp condition should be referred to a physician?
- Persistent sores that ooze or bleed Correct answer.
- Mild itching on a hot day
- A small amount of product buildup
- Slight flaking after not shampooing
Explanation
Open sores, bleeding, pus, or persistent lesions fall outside the barber's scope and require medical evaluation. The barber should not treat broken or infected skin. Routine flaking and mild itching are common and manageable in the salon.
Question 47Hair and Scalp Care and Treatments
What is the correct direction to move the hands when performing a basic scalp massage?
- In random circular motions only
- From the hairline toward the crown Correct answer.
- Against the direction of hair growth
- From the crown down toward the neck
Explanation
Standard scalp massage moves from the front hairline and temples toward the crown and back of the head, following a relaxed, rhythmic pattern. This direction supports circulation and client comfort. Random or backward motions can tangle hair and feel unpleasant.
Question 48Hair and Scalp Care and Treatments
Which hair type generally requires the gentlest handling and the least shampooing because natural oils spread easily along the strand?
- Fine, straight hair Correct answer.
- Coarse, curly hair
- Thick, wavy hair
- Medium, wavy hair
Explanation
Fine straight hair lets sebum travel quickly down the strand, so it can look oily soon after washing. It also has less structural bulk and is easily weighed down or damaged by overprocessing. Gentle handling and lighter products suit this hair type.
Question 49Hair and Scalp Care and Treatments
A client's scalp shows thick, yellow, greasy scales that adhere to the scalp and hair. Which condition is most consistent with this description?
- Furuncle
- Pityriasis capitis simplex
- Alopecia areata
- Pityriasis steatoides Correct answer.
Explanation
Pityriasis steatoides is the greasy form of dandruff, with waxy yellow scales that cling to the scalp and hair shaft. Its oily, adherent nature separates it from the dry, loose flakes of simplex dandruff. Treatment focuses on cleansing and oil control.
Question 50Hair and Scalp Care and Treatments
Which ingredient in a medicated shampoo is commonly used to reduce dandruff caused by yeast overgrowth?
- Zinc pyrithione Correct answer.
- Glycerin
- Sodium lauryl sulfate
- Citric acid
Explanation
Zinc pyrithione is an antifungal agent widely included in dandruff shampoos to control the yeast associated with flaking. Sodium lauryl sulfate is a cleanser, citric acid adjusts pH, and glycerin is a humectant. Matching the active ingredient to the condition guides product selection.