I85PREP
⌘ K
WI Esthetician study materials
WI Esthetician study resources

WI Esthetician practice questions

One question at a time. Build your WI Esthetician understanding.

First 50 of 200 questions. Each one lists the choices, the correct answer, and an explanation. The checker at the top of this page saves progress in this browser when it is available.

Continue in the practice tool above to load more questions, 50 at a time.

Question 1Infection Control, Sanitation, and Safety

Sanitation in an esthetics setting primarily involves…

  1. destroying all microbial life, including bacterial spores
  2. using an autoclave to sterilize heat-resistant implements
  3. applying a hospital-grade disinfectant for the label's stated contact time
  4. cleaning surfaces and tools to remove visible debris and reduce microorganism counts Correct answer.

Explanation

Sanitation is the lowest level of infection control: it removes visible debris and reduces the number of microorganisms on surfaces and tools. It does not destroy all microbial life; that is sterilization. Disinfection is a separate, stronger chemical step performed after cleaning.

Question 2Infection Control, Sanitation, and Safety

Which action is required before disinfecting a metal extractor that has visible cream residue on it?

  1. Store it in a closed drawer until later
  2. Wipe it once with a dry paper towel
  3. Place it directly into the disinfectant solution
  4. Wash it with soap and water, then dry it Correct answer.

Explanation

Cleaning must come before disinfection because residue can shield microorganisms and prevent the disinfectant from contacting the surface. The tool should be washed with soap and water, rinsed, and dried before soaking.

Question 3Infection Control, Sanitation, and Safety

The most important routine practice for preventing transmission of pathogens from an esthetician's hands is…

  1. keeping nails long and polished
  2. using hand sanitizer instead of washing when hands are visibly soiled
  3. wearing the same gloves for several clients
  4. washing hands with soap and water before and after each client Correct answer.

Explanation

Hand washing with soap and water is the single most important routine practice for reducing pathogen transmission. Hands should be washed before and after each client and whenever contaminated. Alcohol sanitizer is not a substitute when hands are visibly soiled.

Question 4Infection Control, Sanitation, and Safety

Disposable gloves should be changed…

  1. between clients and whenever they become contaminated Correct answer.
  2. only when they tear
  3. after every two clients
  4. at the end of the workday

Explanation

Gloves are single-use barriers and must be changed between clients and whenever they become torn, soiled, or contaminated. Reusing gloves transfers microorganisms from one client or surface to another. Hand washing should follow glove removal.

Question 5Infection Control, Sanitation, and Safety

Which item is considered single-use and must be discarded after one client?

  1. A disposable lip applicator Correct answer.
  2. A glass mixing bowl
  3. A metal spatula
  4. A stainless steel comedone extractor

Explanation

Single-use items are designed to be used once and then discarded because they cannot be reliably cleaned and disinfected for reuse. A disposable lip applicator is an example. Metal and glass implements are reusable when properly cleaned and disinfected or sterilized.

Question 6Infection Control, Sanitation, and Safety

Where should an esthetician find safety information about a chemical product such as a peel solution?

  1. In the appointment calendar
  2. On the product's Safety Data Sheet (SDS) Correct answer.
  3. On the state licensing website only
  4. In the client's intake form

Explanation

A Safety Data Sheet provides hazard, handling, storage, and first-aid information for a chemical product. Estheticians should keep SDS documents accessible for all chemicals used in the workplace.

Question 7Infection Control, Sanitation, and Safety

Used lancets and other sharp implements should be…

  1. recapped and placed in the regular trash
  2. wrapped in paper towels and stored in a drawer
  3. placed in a rigid, puncture-resistant sharps container Correct answer.
  4. rinsed and reused after disinfection

Explanation

Sharps must be discarded immediately into a rigid, puncture-resistant, labeled sharps container to prevent needlestick injuries. Recapping or placing sharps in regular trash creates an exposure risk.

Question 8Infection Control, Sanitation, and Safety

If an esthetician's gloved hand is contaminated with a client's blood, the esthetician should…

  1. continue the service and change gloves at the end
  2. blow on the glove to dry it
  3. remove the gloves, wash hands, and put on new gloves Correct answer.
  4. wipe the glove with disinfectant and continue

Explanation

A contaminated glove must be removed promptly, hands washed with soap and water, and new gloves applied before continuing. Disinfecting or drying a contaminated glove does not make it safe to reuse.

Question 9Infection Control, Sanitation, and Safety

An EPA-registered disinfectant label states a 10-minute contact time. What does this mean?

  1. The disinfectant can be reused for 10 clients
  2. The tool should be soaked for 10 seconds
  3. The product must be diluted after 10 minutes
  4. The tool must remain wet with the disinfectant for the full 10 minutes Correct answer.

Explanation

Contact time is the length of time the surface must stay wet with the disinfectant to achieve the labeled kill claims. If the surface dries before that time, the process may be ineffective. The label directions must be followed exactly.

Question 10Infection Control, Sanitation, and Safety

A disinfectant labeled "hospital-grade" is appropriate for esthetics tools because it…

  1. replaces the need for hand washing
  2. sterilizes all tools, including porous items
  3. is registered to kill a broad spectrum of pathogens when used as directed Correct answer.
  4. can be used on the skin as a sanitizer

Explanation

Hospital-grade disinfectants are EPA-registered to kill a broad spectrum of pathogens on inanimate surfaces when used according to label directions. They do not sterilize porous items and are not skin-care products.

Question 11Infection Control, Sanitation, and Safety

Which item is porous and therefore generally cannot be adequately disinfected for reuse?

  1. Glass spatula
  2. Stainless steel tweezers
  3. Metal comedone extractor
  4. A foam buffer or pumice stone Correct answer.

Explanation

Porous materials such as foam, pumice, and some woods absorb liquids and cannot be reliably cleaned and disinfected. They should be treated as single-use or replaced. Nonporous metal and glass can be cleaned and disinfected or sterilized.

Question 12Infection Control, Sanitation, and Safety

An autoclave is used in esthetics to…

  1. store used implements
  2. sterilize heat-resistant implements using high-pressure steam Correct answer.
  3. disinfect floors and counters
  4. clean makeup brushes between clients

Explanation

An autoclave sterilizes heat-resistant implements using high-pressure steam. Items must be cleaned first and packaged according to the manufacturer's directions. Autoclaves are not used for environmental surfaces or brush cleaning.

Question 13Infection Control, Sanitation, and Safety

Which infection is caused by a virus and can be prevented by the hepatitis B vaccine?

  1. Hepatitis B Correct answer.
  2. Folliculitis
  3. Impetigo
  4. Tinea corporis

Explanation

Hepatitis B is a viral infection that affects the liver and can be prevented with a vaccine. It can be transmitted through contact with infected blood or body fluids. Tinea, impetigo, and folliculitis are not prevented by the hepatitis B vaccine.

Question 14Infection Control, Sanitation, and Safety

HIV is transmitted primarily through…

  1. contact with infected blood or body fluids Correct answer.
  2. casual contact such as hugging
  3. sharing a comb
  4. touching a toilet seat

Explanation

HIV is transmitted through contact with infected blood, semen, vaginal fluids, or breast milk, often through unprotected sexual contact or shared needles. Casual contact and shared objects do not transmit HIV. Standard precautions still apply to all blood and body fluids.

Question 15Infection Control, Sanitation, and Safety

Bacterial spores are significant in infection control because they…

  1. only affect plants
  2. are easily killed by soap and water
  3. are highly resistant and may survive many disinfectants Correct answer.
  4. are a type of virus

Explanation

Bacterial spores are highly resistant forms that can survive many routine disinfectants and environmental conditions. Sterilization processes such as autoclaving are used when spore destruction is required. Spores are bacteria, not viruses.

Question 16Infection Control, Sanitation, and Safety

The OSHA Bloodborne Pathogens Standard requires employers to…

  1. provide training and appropriate PPE to employees Correct answer.
  2. provide free lunch
  3. sterilize all brushes
  4. test clients for HIV

Explanation

The OSHA Bloodborne Pathogens Standard requires employers to provide training, personal protective equipment, hepatitis B vaccination availability, and exposure control procedures. It does not require client HIV testing.

Question 17Infection Control, Sanitation, and Safety

A client arrives with a red, swollen, draining eye infection. The esthetician should…

  1. apply a warm compress and continue
  2. perform the service but avoid the eye area
  3. reschedule the service and refer the client to a physician Correct answer.
  4. wear gloves and proceed with the facial

Explanation

A draining eye infection is contagious and may spread through contact with secretions or contaminated linens and tools. The service should be postponed and the client referred for medical evaluation. Gloves do not make it safe to proceed.

Question 18Infection Control, Sanitation, and Safety

Which practice best protects against electrical shock in the treatment room?

  1. using extension cords across wet floors
  2. plugging several high-voltage devices into one outlet
  3. keeping electrical equipment away from water and checking cords for damage Correct answer.
  4. touching equipment with wet hands

Explanation

Water and damaged cords increase the risk of electrical shock. Equipment should be kept away from water, cords inspected regularly, and outlets not overloaded. Wet hands should never touch electrical equipment.

Question 19Infection Control, Sanitation, and Safety

How should chemical products such as glycolic acid peels be stored?

  1. in labeled containers away from heat and out of reach of clients Correct answer.
  2. with food products in the refrigerator
  3. near heat sources for easy access
  4. in unlabeled drink bottles

Explanation

Chemicals must be kept in their original or properly labeled containers, away from heat and incompatible products, and out of reach of clients. Unlabeled containers and food storage areas create serious hazards.

Question 20Infection Control, Sanitation, and Safety

To reduce the risk of repetitive strain injury during long workdays, an esthetician should…

  1. adjust table height, use proper posture, and take stretch breaks Correct answer.
  2. work through pain without breaks
  3. keep the treatment table as low as possible
  4. use the same grip for every service

Explanation

Ergonomic adjustments such as proper table height, neutral posture, varied hand grips, and regular stretch breaks reduce strain on the body. Ignoring pain or keeping the table too low increases injury risk.

Question 21Infection Control, Sanitation, and Safety

A tool has visible debris when placed into a hospital-grade disinfectant. What is the most likely result?

  1. Organic matter interferes with the disinfectant, so pathogens may survive Correct answer.
  2. The contact time is automatically reduced
  3. The disinfectant becomes stronger
  4. The tool is sterilized faster

Explanation

Visible debris and organic matter can shield microorganisms and interfere with the disinfectant's action. Cleaning must be completed before disinfection so the chemical can contact the entire surface. Disinfectants are not designed to work through soil.

Question 22Infection Control, Sanitation, and Safety

A client has an active cold sore on the upper lip and requests a facial. The best action is to…

  1. proceed normally and ignore the lesion
  2. pop the blister and disinfect the area
  3. apply a strong exfoliant over the sore
  4. avoid the area or reschedule until the lesion has healed Correct answer.

Explanation

Cold sores are caused by herpes simplex virus and are highly contagious while active. Services should avoid the lesion or be rescheduled until it has healed, and the esthetician should follow standard precautions. Popping or exfoliating the sore can spread the virus and cause injury.

Question 23Infection Control, Sanitation, and Safety

Which practice best prevents cross-contamination during comedo extraction?

  1. wiping the extractor on a towel between extractions
  2. using a clean, disinfected extractor and wearing gloves Correct answer.
  3. using the same extractor without cleaning between clients
  4. extracting with bare fingers

Explanation

Extraction creates a skin opening and contact with sebum and possibly blood, so a clean, disinfected tool and gloves are essential. Tools must be cleaned and disinfected between clients. Bare fingers and reused unprocessed tools can introduce pathogens.

Question 24Infection Control, Sanitation, and Safety

After a blood spill on the floor, which sequence is correct?

  1. Put on gloves, absorb the spill, clean the area, then disinfect with an EPA-registered product Correct answer.
  2. Sweep the blood into a corner and mop with water
  3. Wipe with a dry paper towel and continue
  4. Apply disinfectant first, then remove the blood

Explanation

Spill response follows standard precautions: wear gloves and other PPE as needed, absorb and remove the spill, clean the area, and then disinfect with an EPA-registered product according to its label. Disinfectant should not be applied over visible blood because organic matter interferes with it.

Question 25Infection Control, Sanitation, and Safety

Which statement about UV light units used in some salons is accurate?

  1. They sterilize all tools, including those with debris
  2. They are not a reliable substitute for cleaning and disinfection of implements Correct answer.
  3. They are required by OSHA for every implement
  4. They replace the need for an autoclave for porous items

Explanation

UV light units are not a reliable substitute for proper cleaning and disinfection because light can be blocked by debris and may not reach all surfaces. They do not sterilize porous items or replace an autoclave. OSHA does not require UV units for implements.

Question 26Infection Control, Sanitation, and Safety

How long should an esthetician lather the hands and wrists with soap and water during routine hand hygiene?

  1. 2 minutes
  2. 20 seconds Correct answer.
  3. Until the hands feel dry
  4. 5 seconds

Explanation

Routine hand hygiene requires about 20 seconds of lathering, covering all surfaces of the hands and wrists, followed by rinsing and drying. Shorter lathering does not give soap enough contact time to lift and remove soil and microorganisms.

Question 27Infection Control, Sanitation, and Safety

Which action is an example of sanitation rather than disinfection?

  1. Applying an antiseptic to a client's skin
  2. Sterilizing extractors in an autoclave
  3. Soaking nippers in a hospital-grade disinfectant
  4. Washing a work table with soap and water to remove visible soil Correct answer.

Explanation

Sanitation is the process of cleaning to remove visible soil and reduce microorganisms to a safe level. Disinfection and sterilization go further by killing or destroying microorganisms on inanimate objects.

Question 28Infection Control, Sanitation, and Safety

Antiseptics differ from disinfectants because antiseptics are formulated for use on:

  1. bacterial spores only
  2. living skin Correct answer.
  3. EPA-registered equipment
  4. inanimate surfaces

Explanation

Antiseptics are antimicrobial products intended for living tissue such as skin. Disinfectants are intended for inanimate surfaces and objects and are not formulated for use on skin.

Question 29Infection Control, Sanitation, and Safety

Which item should be discarded after a single use?

  1. Reusable metal spatula
  2. Glass mixing bowl
  3. Wooden orangewood stick Correct answer.
  4. Stainless steel extractor

Explanation

Porous materials such as wood absorb moisture and microorganisms and generally cannot be adequately cleaned and disinfected for reuse. Nonporous metal and glass items can be cleaned and disinfected or sterilized.

Question 30Infection Control, Sanitation, and Safety

A metal extractor is dropped on the floor during a service. Before it can be used again, the implement must be:

  1. cleaned and then disinfected per the label Correct answer.
  2. wiped with a towel and returned to the drawer
  3. rinsed under running water and dried
  4. sprayed with an antiseptic and reused

Explanation

Any implement that contacts the floor is contaminated and must first be cleaned to remove debris, then disinfected according to the manufacturer's label directions. Cleaning before disinfection is essential because soil can shield microorganisms.

Question 31Infection Control, Sanitation, and Safety

What is the correct way to store clean linens between clients?

  1. Keep them in an open bin near the sink
  2. Store them in a closed, clean cabinet Correct answer.
  3. Hang them on a rack in the treatment room
  4. Stack them beside the used towel hamper

Explanation

Clean linens must be kept in a closed, clean area to protect them from dust, moisture, and contamination. They should be separated from soiled linens and work surfaces.

Question 32Infection Control, Sanitation, and Safety

What is the purpose of a sterilization indicator strip or pouch?

  1. It shows that the sterilization conditions were met Correct answer.
  2. It labels the tool for the client
  3. It disinfects the tool during the cycle
  4. It replaces the need for cleaning before sterilization

Explanation

Sterilization indicators change color or appearance when the required conditions of the sterilization cycle have been reached. They verify that the process parameters were met but do not replace cleaning or guarantee sterility on their own.

Question 33Infection Control, Sanitation, and Safety

During a chemical peel, a client reports stinging and the skin becomes red. The esthetician should:

  1. stop the service and remove the product Correct answer.
  2. cover the area with a warm towel
  3. fan the skin until the stinging stops
  4. continue and apply more product

Explanation

Signs of an adverse reaction during a chemical peel require stopping the service and removing the product to limit tissue damage. The esthetician should then follow the product's emergency directions and document the incident.

Question 34Infection Control, Sanitation, and Safety

An esthetician touches a client's cold sore while working and then needs to continue the service. The esthetician should:

  1. continue and change gloves at the next client
  2. change gloves before continuing Correct answer.
  3. wipe the gloves with a dry cloth
  4. put on a second pair of gloves over the first

Explanation

Gloves must be changed after contact with a lesion or other potentially infectious material and before continuing with the service. Hand hygiene should be performed after glove removal.

Question 35Infection Control, Sanitation, and Safety

Which statement about universal precautions is correct?

  1. They treat all blood and body fluids as potentially infectious Correct answer.
  2. They apply only to clients known to carry bloodborne pathogens
  3. They require gloves only during extractions
  4. They replace the need for hand washing

Explanation

Universal precautions require treating all blood and body fluids as if they are infectious, regardless of a client's known health status. This approach protects both the client and the esthetician from unrecognized infections.

Question 36Infection Control, Sanitation, and Safety

A disinfectant label instructs the user to mix the product at a 1:10 dilution. The esthetician should:

  1. substitute a stronger product instead
  2. use it full strength for faster results
  3. add extra water to make it last longer
  4. measure and mix exactly as directed Correct answer.

Explanation

Disinfectants must be diluted exactly as the manufacturer directs to achieve the labeled effectiveness and contact time. Using too little or too much water can reduce germ-killing ability or increase chemical hazards.

Question 37Infection Control, Sanitation, and Safety

Which client condition is a clear reason to decline a facial service and refer the client?

  1. A fresh manicure
  2. An inflamed, weeping skin rash Correct answer.
  3. Chipped nail polish
  4. Dry, flaky skin

Explanation

An inflamed, weeping rash may indicate an active infection or a serious skin condition that could be spread or worsened by treatment. The esthetician should not treat the area and should refer the client for medical evaluation.

Question 38Infection Control, Sanitation, and Safety

A small amount of blood splashes onto an esthetician's forearm, which has a small cut. After washing the area with soap and water, the esthetician should:

  1. apply a tight bandage and finish the client
  2. rinse with disinfectant and continue
  3. wait a week and watch for symptoms
  4. report the exposure and get medical advice Correct answer.

Explanation

A blood exposure on non-intact skin must be reported according to the workplace exposure control plan and evaluated promptly by a medical provider. Post-exposure evaluation may include testing or preventive treatment.

Question 39Infection Control, Sanitation, and Safety

Which practice best reduces the risk of fire in a treatment room?

  1. Using a fan to circulate air over peels
  2. Storing flammables away from heat sources Correct answer.
  3. Leaving hot wax uncovered overnight
  4. Keeping a water bottle beside the wax warmer

Explanation

Flammable products such as alcohol and certain solvents must be stored away from heat sources, sparks, and open flames. This prevents ignition and limits the amount of fuel available if a fire starts.

Question 40Infection Control, Sanitation, and Safety

A product's Safety Data Sheet lists chemical-resistant gloves and goggles as required personal protective equipment. The esthetician should:

  1. wear them only if the client requests
  2. skip them because gloves reduce dexterity
  3. wear the listed protection when handling the product Correct answer.
  4. use the product outdoors only

Explanation

The Safety Data Sheet identifies the protective equipment needed to handle the product safely. The esthetician is expected to follow those instructions whenever mixing, applying, or cleaning up the product.

Question 41Skin Sciences: Anatomy, Physiology, and Histology of the Skin

Which layer of the epidermis contains the dividing keratinocytes that continually renew the epidermis?

  1. Stratum lucidum
  2. Stratum granulosum
  3. Stratum basale Correct answer.
  4. Stratum corneum

Explanation

The stratum basale is the deepest epidermal layer, resting on the basement membrane. Its keratinocytes are the mitotically active population that supplies cells to the layers above.

Question 42Skin Sciences: Anatomy, Physiology, and Histology of the Skin

Which cells in the epidermis produce the pigment melanin?

  1. Keratinocytes
  2. Merkel cells
  3. Melanocytes Correct answer.
  4. Langerhans cells

Explanation

Melanocytes sit mainly in the basal layer and synthesize melanin inside melanosomes. The pigment is then transferred to neighboring keratinocytes, where it helps shield DNA from ultraviolet radiation.

Question 43Skin Sciences: Anatomy, Physiology, and Histology of the Skin

Which layer of skin lies immediately beneath the epidermis?

  1. Dermis Correct answer.
  2. Deep fascia
  3. Hypodermis
  4. Stratum lucidum

Explanation

The dermis is the connective tissue layer directly under the epidermis, separated from it by the basement membrane. It carries the blood vessels, nerves, and appendages that support the epidermis.

Question 44Skin Sciences: Anatomy, Physiology, and Histology of the Skin

What is the principal protein of the stratum corneum?

  1. Keratin Correct answer.
  2. Elastin
  3. Melanin
  4. Collagen

Explanation

Corneocytes of the stratum corneum are packed with keratin, which gives the outer layer its toughness and water resistance. Collagen and elastin are dermal structural proteins, and melanin is a pigment.

Question 45Skin Sciences: Anatomy, Physiology, and Histology of the Skin

Which skin structure secretes sebum?

  1. Nail matrix
  2. Sebaceous gland Correct answer.
  3. Apocrine sweat gland
  4. Eccrine sweat gland

Explanation

Sebaceous glands are attached to hair follicles and release sebum by holocrine secretion, lubricating the skin surface. Sweat glands produce a watery secretion, and the nail matrix produces the nail plate.

Question 46Skin Sciences: Anatomy, Physiology, and Histology of the Skin

Contraction of which muscle produces the appearance of goose bumps?

  1. Orbicularis oculi
  2. Occipitofrontalis
  3. Platysma
  4. Arrector pili Correct answer.

Explanation

The arrector pili is a small smooth muscle attached to the hair follicle. When it contracts in cold or emotion, the hair is pulled upright and the skin dimples into goose bumps.

Question 47Skin Sciences: Anatomy, Physiology, and Histology of the Skin

The hypodermis is composed mainly of which tissue?

  1. Hyaline cartilage
  2. Dense regular collagen
  3. Stratified squamous epithelium
  4. Adipose tissue Correct answer.

Explanation

The hypodermis, or subcutaneous layer, consists largely of adipose tissue held in fibrous septa. This fat pad cushions underlying structures, insulates the body, and stores energy.

Question 48Skin Sciences: Anatomy, Physiology, and Histology of the Skin

What is the typical pH range of the skin's acid mantle?

  1. 6.5 to 7.5
  2. 1.0 to 2.0
  3. 2.5 to 3.5
  4. 4.5 to 5.5 Correct answer.

Explanation

The surface film of sweat, sebum, and breakdown products is mildly acidic, generally around pH 4.5 to 5.5. This acidity supports the barrier and discourages growth of many pathogens.

Question 49Skin Sciences: Anatomy, Physiology, and Histology of the Skin

What is the primary role of Langerhans cells in the epidermis?

  1. Light touch detection
  2. Melanin synthesis
  3. Antigen presentation Correct answer.
  4. Keratin production

Explanation

Langerhans cells are dendritic immune cells scattered through the epidermis. They capture foreign antigens and migrate to lymph nodes, where they present those antigens to initiate an immune response.

Question 50Skin Sciences: Anatomy, Physiology, and Histology of the Skin

Merkel cells are best described as which type of cell?

  1. Immune cells
  2. Touch receptors Correct answer.
  3. Stem cells
  4. Pigment-producing cells

Explanation

Merkel cells lie in the basal layer and form complexes with sensory nerve endings. They function as mechanoreceptors for fine, discriminative touch, especially in fingertips and lips.