WCEI- Practice Exam 1
Which component of the blood is primarily involved in forming the initial phase of a blood clot during wound healing?
Red blood cells
Platelets
White blood cells
Plasma proteins
Which type of white blood cell is most abundant and acts as the first responder to bacterial infection?
Lymphocytes
Neutrophils
Eosinophils
Monocytes
Neutrophils
What role does melanin play in protecting the skin from ultraviolet radiation?
Acts as a physical barrier by scattering and absorbing UV rays to decrease penetration
Increases transepidermal water loss to cool the skin
Produces antimicrobial peptides to defend against sun-induced pathogens
Stimulates the production of sweat to enhance evaporation cooling
Acts as a physical barrier by scattering and absorbing UV rays to decrease penetration
What is the average pH of the acid mantle of an adult’s skin?
5.5
0 to 4.5
7.1 to 14
7.0
5.5
Which layer of the epidermis is responsible for producing new cells through mitosis?
Stratum Lucidum
Stratum Spinosum
Stratum Germinativum
Stratum Granulosum
Stratum Germinativum
Attaches bone to bone
Connects muscle to bone
Provides a surface for bones to glide over
Surround muscles to reduce friction
Connects muscle to bone
What BEST describes the characteristics of healthy skeletal muscle?
White and shiny in appearance
Pearly white ribbon-like appearance
Pink to dark red in color with striation
Pale pink without striation
Pink to dark red in color with striation
What is the primary composition of fascia?
Adipose tissue
Collagen
Keratin
Muscle tissue
Collagen
What protein gives red blood cells the ability to transport oxygen?
Fibroblasts
Hemoglobin
Macrophage
Mast Cells
Hemoglobin
What BEST describes the responsibilities of collagen and elastin in the skin?
Transporting nutrients and waste products through the dermis
Killing parasites and helping with allergic responses
Protecting skin integrity and preventing water loss
Providing tensile strength and recoil to the skin
Providing tensile strength and recoil to the skin
What best describes what “Skin of Color” refers to?
A specific skin type that is only found in tropical regions
Skin that tans easily and rarely burns under sun exposure
The broad range of skin types and complexions of individuals not of White descent
Skin that is overly sensitive to ultraviolet radiation and prone to sunburn
The broad range of skin types and complexions of individuals not of White descent
Which of the following best describes a systematic head-to-toe skin assessment?
Examining only the areas around and under medical devices
Inspecting and palpating the skin, focusing on bony prominences and skin folds
Using only visual inspection to assess the skin
Checking the patient’s clothing for signs of moisture
Inspecting and palpating the skin, focusing on bony prominences and skin folds
What is the term used to describe a pocket of pus under the skin surrounded by inflamed tissue?
Furuncle
Abscess
Carbuncle
Blister
Abscess
What are some of the key factors assessed by the Malnutrition Screening Tool (MST)?
Level of physical activity
Amount of sleep
Unintentional weight loss
Skin integrity
Unintentional weight loss
Why should a skin turgor test be performed on the chest in older adults?
The skin on the chest is more sensitive.
The chest is less affected by loose skin.
The chest has less exposure to sunlight.
The chest is easier to access during an exam.
The chest is less affected by loose skin.
Which laboratory test is most indicative of a patient's long-term blood glucose control and potential wound healing complications?
Complete Blood Count (CBC)
Serum Albumin
Hemoglobin A1C
Blood Urea Nitrogen (BUN)
Hemoglobin A1C
Which action best demonstrates a clinician addressing a patient’s health literacy in their wound care plan?
Explaining wound care instructions in simple, non-medical language and using visual aids
Providing a detailed medical pamphlet with technical terms for patient education
Assuming the patient understands wound care instructions because they seem attentive
Delivering only verbal instructions without offering written or visual materials
Explaining wound care instructions in simple, non-medical language and using visual aids
Which end-stage foot complication in diabetic patients is often confused with infection due to similar symptoms such as swelling, warmth, and redness?
Venous thromboembolism (VTE)
Charcot neuroarthropathy
Osteomyelitis
Lymphedema
Venous thromboembolism (VTE)
In the context of a patient with a diabetic foot ulcer, which laboratory value is highly suggestive of osteomyelitis when correlated with clinical findings and diagnostic imaging?
ESR of 18 mm/hr or lower (below normal range)
ESR of 20 to 30 mm/hr (within normal range for adults)
Elevated ESR of 60 mm/hr
Elevated ESR of 70 mm/hr or higher
Elevated ESR of 70 mm/hr or higher
* Elevated ESR of 70 mm/hr or higher is the laboratory value highly suggestive of osteomyelitis when correlated with clinical findings and diagnostic imaging. common and widely utilized clinical guideline marker is an Erythrocyte Sedimentation Rate (ESR) greater than \(70 \text{ mm/hr}\). When assessing for DFO, having an ESR value this elevated is highly predictive of bone infection, especially when combined with other strong diagnostic indicators like a positive "probe-to-bone" test or an ulcer larger than \(2 \text{ cm}^2\)
When assessing the wound of a patient with a dark skin tone, what should you be particularly aware of?
The need for additional cleansing
Erythema may appear as purple or darker hues.
Increased susceptibility to infection
Different types of exudate can affect the assessment.
Erythema may appear as purple or darker hues.
A patient with a diabetic foot ulcer has thick, yellow-green drainage with a foul odor. The wound bed appears inflamed and edematous. What type of exudate is present?
Serous
Purulent
Seropurulent
Serosanguineous
Purulent
What is an example of addressing a patient’s economic status as part of the Social Determinants of Health (SDOH) in their wound care plan?
Prescribing the most expensive wound dressing because it is the most advanced treatment option
Discussing cost-effective alternatives with the patient and exploring financial assistance programs
Assuming the patient can afford all prescribed treatments without asking about their financial situation
Encouraging the patient to purchase all necessary supplies regardless of their financial constraints
Discussing cost-effective alternatives with the patient and exploring financial assistance programs
A 78-year-old bedbound patient is being evaluated for a pressure injury on the sacrum. On assessment, the wound presents with a shallow open ulcer, a red-pink wound bed without slough, and no visible bone, tendon, or muscle. There is partial-thickness skin loss, and the surrounding skin is intact. How should this pressure injury be staged?
Stage 1
Stage 2
Stage 3
Unstageable
Stage 2
A 65-year-old patient presents with a linear cluster of fluid-filled blisters on their left flank, accompanied by sharp, prickly pain and flu-like symptoms. What type of lesion is most likely responsible for these symptoms?
Contact Dermatitis
Herpes Zoster
Varicella-Zoster
Pemphigus Vulgaris
Herpes Zoster
A 58-year-old patient presents with severe pain in their left leg that is out of proportion to physical findings. The leg appears red, swollen, and warm to the touch. Fluid-filled blisters (bullae) are present, and the patient reports flu-like symptoms, including fever and chills. What is the most likely diagnosis?
Cellulitis
Necrotizing fasciitis
Deep Vein Thrombosis (DVT)
Pyoderma Gangrenosum
Necrotizing fasciitis
Which condition is characterized by itchy, blistered, and crusted plaques on the legs associated with venous insufficiency?
Telangiectasia
Stasis dermatitis
Atrophie blanche
Ecchymosis
Stasis dermatitis
What characteristic distinguishes purpura from petechia and ecchymosis?
Size of lesions
Color of lesions
Cause of lesions
Locations of lesions
Size of lesions
*Petechiae: Small, pinpoint spots less than 3 mm in diameter.
A 6-year-old child presents to the clinic with a large, non-healing wound on their leg. The child appears visibly uncomfortable, and the parent mentions the child has difficulty sleeping due to pain. Which pain assessment tool is most appropriate for assessing the child’s pain level?
Numerical Rating Scale (NRS)
Wong-Baker FACES Pain Rating Scale
Visual Analog Scale (VAS)
FLACC Scale (Face, Legs, Activity, Cry, Consolability)
Wong-Baker FACES Pain Rating Scale
A patient with necrotizing fasciitis has undergone surgical debridement and has an open wound with copious drainage. What is the BEST wound care approach to manage exudate while promoting granulation tissue?
Apply a dry gauze dressing and change it daily.
Use a negative pressure wound therapy (NPWT) system with hypochlorous acid instillation.
Pack the wound with saline-soaked gauze and change it every 8 hours.
Pack the wound with hypochlorous acid soaked calcium alginate and change it every 12 hours.
Use a negative pressure wound therapy (NPWT) system with hypochlorous acid instillation.
Which of the following best describes microbial activity during the contamination stage of wound infection?
Microorganisms are causing visible signs of infection.
Microorganisms are present but not actively multiplying or causing harm.
Microorganisms have invaded deeper tissues and caused systemic symptoms.
Microorganisms form biofilms that adhere to the wound surface.
Microorganisms form biofilms that adhere to the wound surface.
A patient with a venous leg ulcer has not shown measurable signs of improvement over the past 3 weeks. They deny pain, and no erythema, purulence, or fever is present. You reviewed wound culture results, which show moderate growth of Staphylococcus aureus. Which sign is typical of the colonization stage of wound infection?
Increased microbial load without clinical signs
Red streaks extending from the wound
Increased microbial load with purulence and pain
High fever, tachycardia and low blood pressure
High fever, tachycardia and low blood pressure
How long after mechanical disruption of a biofilm are antimicrobial treatments most effective?
Less than 24 hours
48 to 72 hours
24 to 48 hours
More than 96 hours
Less than 24 hours
Your patient has a stage 3 pressure injury on their sacrum. They have developed the following symptoms: High fever, rapid heart rate, low blood pressure, new confusion, and decreased urinary output. The wound bed is dark grey and is producing moderate amounts of malodorous exudate. What group of symptoms are MOST characteristic of a systemic infection (sepsis)?
High fever, rapid heart rate, and low blood pressure
Fever, bradycardia, and decreased urinary output
New confusion, low blood pressure, and decreased urinary output
Increased exudate, malodor, and necrosis
High fever, rapid heart rate, and low blood pressure
If clinical suspicion for osteomyelitis is high and radiographs are not confirmative, what IMAGING study is indicated NEXT?
Ultrasound
MRI
Triple phase bone scan
Tagged-WBC scan
MRI
Necrotizing fasciitis
Often called "flesh-eating disease," is a rare but severe bacterial infection that destroys the tissue beneath the skin, including fat and the fascia (the tissue covering muscles). It is a medical emergency that spreads rapidly and can be fatal if not treated immediately.
A normal or expected baseline range for healthy adults generally falls into these brackets:
Why ESR is Measured
The ESR test is a non-specific marker used to detect and monitor the presence of systemic inflammation in your body. It measures how quickly red blood cells sink to the bottom of a specialized test tube. When inflammation is present, specific proteins in the blood cause red blood cells to stick together and fall more quickly, resulting in a higher ESR numbe
What is a Marjolin ulcer?
Aggressive type of skin cancer that develops in areas of previously traumatized, chronically inflamed, or scarred skin. The most common precursor is an old thermal burn scar, though they can also arise from venous ulcers, pressure sores, and osteomyelitis (bone infection)
Marjolin Key Characteristics
You should be highly suspicious of any chronic scar or non-healing wound that begins to change. Warning signs include: [1, 2, 3]
Marjolin treatment
Pyoderma gangrenosum?
A rare, non-infectious inflammatory skin disease characterized by rapidly developing, extremely painful skin ulcers. It is not caused by infection or gangrene, but by an overactive immune system where white blood cells (neutrophils) accumulate and cause the skin to break down
Pyoderma gangrenosum appearance
Starts as a small, red bump or blister that quickly ruptures and enlarges into a deep, painful open sore. The ulcers typically feature a purplish, gunmetal-grey, or "rolled" border. Location: Most commonly appears on the legs, though it can occur anywhere on the body
Pyoderma gangrenosum underlying cause