Epidermis → The top/outer layer of skin.
Dermis → The inner layer of skin, contains collagen (a protein that gives skin strength and flexibility).
Dermal–Epidermal Junction → The area that separates the epidermis and dermis.
Think of it like this:
Epidermis is like the paint on a house.
Dermis is like the walls and framework inside.
Dermal-Epidermal Junction is like the glue that holds both together.
Also called pressure ulcers, bed sores, or decubitus ulcers.
Happens when there is too much pressure on the skin for a long time.
This pressure cuts off blood flow, causing skin and tissue damage.
Pressure Intensity – If pressure is strong enough, blood flow stops → skin doesn’t get oxygen → tissue dies.
Tissue ischemia → Fancy word for "lack of blood flow = dying skin."
Blanching → When you press on healthy skin, it turns white and then returns to normal.
If it doesn’t turn white = early sign of a pressure injury.
Pressure Duration – The longer pressure stays on the skin, the more damage happens.
Tissue Tolerance – Some skin is more fragile than others.
Example: Elderly people, malnourished patients, or those with poor circulation are at higher risk because their skin is weaker.
Think of a garden hose. If you step on it for a few seconds, water stops but starts flowing again when you move your foot (blanching = temporary pressure).
But if you stand on it for hours, the hose gets damaged and the water may never flow properly again (tissue ischemia = severe pressure injury).
Some people are more likely to develop pressure injuries because their bodies can't protect their skin well.
Impaired Sensory Perception – If someone can’t feel pain or pressure, they don’t know when to move and relieve pressure.
Example: A patient with spinal cord injury or diabetes (nerve damage).
Impaired Mobility – If someone can’t move on their own, they stay in the same position too long.
Example: People who are paralyzed, in a coma, or very weak.
Altered Level of Consciousness (LOC) – If a person is too sick, sedated, or unconscious, they don’t realize they need to move.
Example: Someone under anesthesia, in a coma, or confused (dementia, stroke patients).
Shear – Skin moves one way, but the body moves another → This stretches skin layers and damages deep tissues.
Example: When a patient slides down in bed, their skin stays in place but the body moves, causing damage.
Friction – Repeated rubbing against surfaces can weaken the skin.
Example: Dragging a patient instead of lifting them properly when moving them in bed.
Moisture – Wet skin breaks down easily.
Example: Patients who are incontinent (can’t control urine or stool) or sweat a lot are at high risk.
M → Moisture weakens skin
I → Immobility (can’t move)
S → Shear (skin pulled in different directions)
S → Sensory loss (can’t feel pain)
F → Friction (rubbing damages skin)
I → Impaired consciousness (too sick, unconscious, or confused)
T → Tissue tolerance (weaker skin = more risk)
Pressure injuries are classified into 6 categories, depending on how deep the skin damage is.
Stage 1 → Red skin that does NOT turn white when pressed (non-blanchable).
Skin is intact but may feel warm, firm, or painful.
Stage 2 → Partial-thickness skin loss (outer layer of skin is missing).
Looks like an open blister or shallow wound with pink/red color.
Stage 3 → Full-thickness skin loss (deeper layers of skin are gone).
Fat (yellowish tissue) is visible, but not muscle, bone, or tendon.
Stage 4 → Severe skin loss, exposing muscle, bone, or tendons.
Very deep wound, high risk of infection.
Unstageable Pressure Injury → The wound is covered in dead tissue (slough or eschar), making it impossible to see the depth.
Deep-Tissue Pressure Injury (DTI) → Dark purple/maroon skin or blood-filled blister.
Skin may still be intact, but tissue underneath is severely damaged.
Stage 1 → Red, intact skin (warning sign 🚨).
Stage 2 → Shallow wound or blister.
Stage 3 → Fat is visible.
Stage 4 → Bone, muscle, or tendon exposed.
Unstageable → Too much dead tissue to see depth.
DTI → Deep bruise (purple/dark color, skin may look normal but damage is underneath).
Caused by medical equipment putting pressure on the skin.
Examples:
NC (nasal cannula)
NGT (nasogastric tube)
F/C (Foley catheter)
Casts
These can create pressure injuries where the device touches the skin.
Caused by sticky medical tape or adhesives.
Can lead to:
Skin stripping (when tape pulls off top layers of skin).
Tape burns (skin reaction from the adhesive).
Wounds can be caused by trauma, injury, or surgery.
Two types:
Open wounds – Skin is broken; higher infection risk.
Closed wounds – Skin is intact but tissue underneath is damaged (like bruises).
A cast rubbing on the heel can cause a pressure injury = MDRPI.
Removing tape too quickly can peel skin = Adhesive-Related Injury.
A surgical cut = open wound.
A bruise from a fall = closed wound.
Primary Intention
Clean wound edges are brought together (usually with sutures, staples, or glue).
Heals quickly with minimal scarring.
Example: Surgical incision that’s stitched closed.
Secondary Intention
Wound is left open and heals naturally from the bottom up.
Takes longer and may leave a larger scar.
Example: Pressure ulcer or large open wound.
Tertiary Intention
A combination: wound is left open for a while, then closed later.
Used when there’s infection risk or swelling.
Example: Abdominal wound that needs monitoring before closing.
Partial-Thickness Repair → Only top layers of skin are affected (like a scrape or shallow cut).
Heals faster with less scarring.
Full-Thickness Repair → Affects all skin layers and possibly deeper tissue (like muscle).
Takes longer to heal and may need special care.
Primary → Closed right away (surgical cut).
Secondary → Left open to heal (pressure injury).
Tertiary → Open first, then closed later (infection concerns).
When a deep wound heals (involving all layers of skin), it goes through 4 steps or phases:
Happens right after injury.
Blood vessels constrict, and a clot forms.
Goal: Stop bleeding and start healing.
Begins within minutes to hours after injury.
You’ll see: Redness, swelling (edema), warmth, and throbbing.
White blood cells come to fight infection and clean the wound.
The wound starts filling in with granulation tissue (new pink/red tissue).
The skin starts growing back.
Blood vessels regrow to bring oxygen and nutrients.
The wound closes, and granulation tissue becomes scar tissue.
This phase can last weeks to months depending on how deep the wound is.
H.I.P.R.
Hemostasis → Stop bleeding
Inflammation → Body fights infection
Proliferative → New tissue grows
Remodeling → Scar forms
Too much bleeding from the wound.
Can happen internally or outside the body.
Emergency if not controlled.
Redness, swelling, pus, odor, or fever.
Wound may look worse instead of better.
Delays healing and can spread to other areas.
Wound reopens after being closed.
Skin and tissue separate.
Often caused by too much pressure (like coughing, vomiting, or lifting heavy stuff).
Severe form of dehiscence → Organs come out of the wound.
Life-threatening emergency → Cover with sterile, moist dressing and call for help immediately.
"HIDE" = Hemorrhage, Infection, Dehiscence, Evisceration
As nurses, one of your most important roles is to prevent pressure injuries before they happen.
Use tools like the Braden Scale to predict a patient's risk for developing pressure injuries.
You assess things like:
Mobility
Moisture
Nutrition
Sensation
Activity level
Friction/shear
The lower the score, the higher the risk!
Pressure injuries are expensive to treat.
Hospitals may not get reimbursed if a pressure injury develops while the patient is in their care.
Prevention is more cost-effective than treatment!
If we catch the risk early and take the right steps, we can protect the patient and save money.
Several things can slow down or speed up how a wound heals.
The body needs protein, vitamins (like A and C), and calories to build new skin.
Poor nutrition = slower healing and weaker skin.
Wounds need oxygen-rich blood to heal.
If blood doesn’t flow well (like in people with diabetes, heart issues, or smoking history), healing is delayed.
Germs can invade the wound and slow healing or make it worse.
Signs: redness, swelling, pain, pus, or fever.
Older adults heal slower than younger people.
Their skin is thinner and blood flow is reduced.
Wounds can affect a person’s self-esteem and mental health.
Some people may feel embarrassed, anxious, or depressed, especially if the wound affects how they look or live.
Imagine a patient with diabetes, who is 80 years old, doesn’t eat much, and has a leg wound. All these factors will make healing much slower.
Know What’s Normal
You need to understand what healthy skin looks like and how wounds normally heal.
This helps you spot problems early.
Know the Causes
Learn how pressure injuries develop (from pressure, shear, friction, etc.).
Also understand how diseases (like diabetes or poor circulation) affect healing.
Observe & Learn
Look at the wound regularly.
Watch how it changes. Is it getting better or worse?
This helps you recognize signs of infection, healing, or complications.
The more you know and observe, the better you can care for your patient’s skin and wounds.
This part is about how to begin your wound care assessment as a nurse. It’s not just about the wound—you start with the patient as a whole.
Through the Patient’s Eyes
Ask the patient:
How do you feel about your wound?
Do you have any pain, discomfort, or concerns?
Understand their emotions, fears, and goals.
Include the Family
Family members can help with:
Sharing information about the patient’s health or routines.
Supporting the patient emotionally.
Helping with home care if needed.
Assess the Environment
Is their home or hospital bed helping or hurting skin healing?
Look at things like:
Cleanliness
Bed surfaces
Access to mobility aids
Inspect the Skin
Look head to toe, including bony areas (like heels, elbows, and tailbone).
Check for:
Redness
Swelling
Open areas
Discoloration
You’re not just looking at the wound, you’re looking at the whole person and their surroundings.
Now that you've looked at the patient as a whole, here’s how you assess the actual wound and related risk factors.
Predictive Measures
Use tools like the Braden Scale to see if the patient is at risk for a pressure injury.
Mobility
Can the patient move on their own?
Do they need help turning in bed or shifting in a chair?
Nutritional Status
Are they eating enough protein, vitamins, and fluids?
Poor nutrition means slower healing.
Body Fluids
Are there fluids (like urine, sweat, or wound drainage) irritating the skin?
Too much moisture = skin breakdown.
Pain/Sensation
Ask the patient:
Is the wound painful?
Can they feel pressure in that area?
People who can’t feel pressure (like diabetics) are at higher risk for unnoticed injuries.
You’re checking if the patient has risk factors that might make a wound worse or slow it down from healing.
These are wounds caused by surgery or accidents (not pressure injuries), and they need a thorough check.
Emergency Setting
If the wound just happened (like in the ER), check:
Bleeding
Contamination (is it dirty?)
Severity
Stable Setting
If the patient is already being cared for (like in the hospital), focus on:
Healing progress
Signs of infection
Is the wound getting better or worse?
Wound Appearance
Look at:
Color
Size
Edges (are they open or coming together?)
Tissue type (healthy red? yellow slough? black eschar?)
Character of Wound Drainage (pg. 1327)
What’s coming out of the wound? Could be:
Serous → clear/yellow fluid
Sanguineous → bloody
Serosanguineous → mix of clear and blood
Purulent → thick, smelly pus (sign of infection)
Palpation of Wound
Gently touch around the wound to feel for:
Warmth (infection?)
Tenderness
Hard areas (swelling underneath)
Drains
Is there a drain in place?
Check:
Type of drain
How much fluid is coming out
Color of the fluid
Wound Closures
Are there staples, sutures, or glue?
Are they intact or coming loose?
Wound Cultures
If there’s a sign of infection, a culture may be taken to find out which bacteria are present.
Psychosocial
How does the patient feel about the wound?
Are they embarrassed, anxious, or scared?
This affects healing and cooperation.
You’re checking not just the wound, but also what’s coming out of it, how it feels, how it’s being treated, and how the patient feels about it.
Once you’ve done your assessment, you need to figure out what the patient’s main issues are related to their wound or skin condition. These are your nursing diagnoses.
Risk for Infection
The wound is open or at risk of becoming infected.
Example: A surgical site or pressure injury in a high-risk patient.
Impaired Skin Integrity
The skin is broken or damaged.
Example: A patient with a pressure injury or tape-related skin damage.
Acute or Chronic Pain
The patient is in pain now (acute) or has long-term pain (chronic) related to their wound.
Impaired Mobility
The patient can’t move freely, which increases the risk of more pressure injuries or delays healing.
Impaired Peripheral Tissue Perfusion
Blood isn’t flowing properly to the skin/tissues, which slows down healing or causes damage.
Common in diabetics or patients with circulation issues.
Each one helps guide what nursing actions you'll take to support healing and prevent complications.
Outcomes
What do you want to achieve?
Make goals that are:
Specific
Measurable
Realistic
Time-bound
Example: “The wound will decrease in size by 1 cm in 1 week.”
Setting Priorities
Focus on the most serious problems first.
Example: Treating infection comes before changing dressings.
Ask yourself:
What can harm the patient the most if not fixed right away?
Teamwork and Collaboration
You’re not doing this alone!
Work with:
Wound care nurses
Dietitians (for nutrition)
Physical therapists (for mobility)
Doctors and case managers
You make a clear plan with goals, choose what’s most important, and work with a team to make it happen.
This step is all about taking action. You’ve made the plan—now you carry it out to keep the patient’s skin healthy and promote healing.
Make sure the patient is getting:
High-protein meals
Hydration
Vitamins (A & C) and zinc
Nutrition is fuel for healing!
Topical Skin Care & Incontinence Management
Keep the skin clean and dry.
Use barrier creams to protect against moisture.
Clean urine/stool as soon as possible to prevent breakdown.
Positioning
Turn patients at least every 2 hours to relieve pressure.
Use pillows or foam wedges to reduce pressure on bony areas.
Support Surfaces
Use special beds, cushions, and mattresses for high-risk patients.
These help redistribute pressure and protect skin.
Keep the skin clean and dry, move the patient often, feed them well, and use the right tools and surfaces to protect their skin.
Now we focus on how to handle actual wounds and pressure injuries during care.
Apply gentle pressure.
Use clean or sterile materials.
Elevate the area if needed.
Use normal saline or another safe solution.
Always clean from least contaminated to most contaminated area.
Example: Clean from the wound center out.
Apply appropriate dressings.
Keep the wound moist but not wet—this helps it heal.
Ensure good nutrition, mobility, and hydration.
Reduce moisture, pressure, friction, and shear.
Check wounds regularly for signs of healing or problems (like infection).
Adjust care plan as needed.
When treating wounds, your goal is to:
Stop the bleeding
Keep it clean
Apply the right dressings
Help the body heal with good care and monitoring
Now we're getting into more detailed wound care strategies you’ll use during acute care.
That means doing everything possible to help the wound heal properly and quickly.
Debridement
Removing dead tissue (slough or eschar) to promote healthy healing.
Can be done with:
Special dressings
Irrigation
Scissors or surgical tools (by trained professionals)
Protection
Keep the wound covered and clean.
Use appropriate dressings to protect from germs and friction.
Education
Teach patients:
How to care for their wounds at home.
Signs of infection to watch out for.
Why turning, eating well, and hygiene matter.
Nutritional Status
Make sure the patient is getting the nutrients needed for healing.
May involve a dietitian for support.
Take away what doesn’t belong (debridement), protect the wound, teach the patient, and keep their body strong with good food.
Dressings are not just bandages—they play a huge role in wound healing.
Protect the wound from germs.
Absorb drainage (so it doesn’t sit on the skin).
Help maintain a moist healing environment.
Support tissue regeneration.
Reduce pain and risk of infection.
Different wounds need different dressings. Your job is to choose the right one based on:
Wound depth
Amount of drainage
Presence of infection or dead tissue
Examples (from textbook):
Gauze – For cleaning and covering simple wounds.
Hydrocolloid – Keeps wounds moist (good for healing).
Foam – Absorbs lots of drainage.
Transparent film – Lets you see the wound while protecting it.
Changing Dressings
Do it when saturated, according to schedule, or when ordered.
Always use clean/sterile technique.
Packing a Wound
Fill deep wounds gently with dressing material (not too tight!).
Helps promote healing from the bottom up.
Negative-Pressure Wound Therapy (NPWT)
A special dressing with a vacuum device that:
Removes drainage
Pulls wound edges together
Speeds healing
Securing Dressings
Use tape, ties, or bandages to keep dressing in place.
Dressings aren’t one-size-fits-all. Choose the right type, use clean technique, and know how and when to change them.
This slide is about making sure your patient feels better while their wound is healing, and using the right tools to support that process.
Manage pain before dressing changes.
Offer position changes, gentle techniques, and emotional support.
Make the experience as comfortable as possible.
Use gentle, sterile technique.
Basic skin cleaning:
Wipe from clean to dirty (center of wound out).
Irrigation:
Flushes out bacteria and debris using saline and sometimes a syringe.
Use gentle pressure (don’t damage tissue).
Check if wound is closed with:
Sutures
Staples
Steri-strips
Surgical glue
Make sure closures are clean, dry, and intact.
If there’s a drain, monitor:
Amount, color, and consistency of the fluid.
Types of drains:
Penrose (open)
Jackson-Pratt (JP) or Hemovac (closed suction)
Empty and record output as ordered.
Binders:
Wide bandages that support the abdomen or chest.
Help with swelling or keeping dressings in place.
Slings:
Support an arm or shoulder after injury/surgery.
Roll Bandages:
Used for wrapping arms, legs, or other body parts to secure dressings or provide support.
Keep the patient comfortable, the skin clean, wounds protected, and dressings/drains secured and monitored.
This slide is about using temperature therapy to help with pain, inflammation, or healing—but safely!
Increases blood flow
Relaxes muscles
Helps reduce stiffness or chronic pain
Can promote healing
Reduces blood flow
Numbs pain
Decreases swelling and inflammation
Good for acute injuries (sprains, bruises, etc.)
Before applying heat or cold, always assess if the patient:
Can feel the temperature (some may have nerve damage)
Has any skin conditions or wounds
Can tolerate the therapy safely
Too much heat → can burn or cause swelling
Too much cold → can freeze tissue or decrease circulation
Location – Skin on bony areas is more sensitive
Age – Babies and older adults have thinner skin
Body Fat – More fat = more insulation (less sensitivity to temperature)
Always check the skin before and after, limit the time (usually 15-20 minutes), and never apply directly to bare skin.
This slide lists ways nurses apply heat or cold to help patients feel better or reduce swelling/pain.
Warm, Moist Compresses
A towel soaked in warm water
Helps with muscle tension or wound healing
Warm Soaks
The body part is soaked in warm water (like a hand or foot)
Great for loosening stiff joints or cleaning wounds
Sitz Baths
A warm water bath for the perineal area (after childbirth or rectal surgery)
Soothes and promotes healing
Commercial Heat Packs
Pre-packaged, microwaveable or chemical-activated heat pads
Cold, Moist or Dry Compresses
Used to reduce swelling or bruising
Cold Soaks
Like a warm soak, but in cold water to calm inflammation
Ice Bags or Collars
Used for headaches, surgical sites, or injuries
Be sure to wrap in cloth—never put ice directly on skin!
Always monitor the skin during treatment, limit time to 15-20 minutes, and check patient comfort regularly.
This final step in the nursing process is all about checking your results.
Through the Patient’s Eyes
Ask the patient:
Do they feel better?
Has their pain decreased?
Are they satisfied with how the wound is healing?
It’s important to include their feedback.
Patient Outcomes
Did the wound:
Get smaller?
Have less drainage?
Show signs of healing (new tissue, less redness)?
If yes → continue the plan!
If no → adjust the care plan or try something new.
You look at what you did and decide: “Is it working?” If it’s not, you re-evaluate and change the approach.
This slide highlights key safety rules every nurse should follow when caring for skin and wounds.
Use clean or sterile techniques when changing dressings.
This helps prevent infections from getting into the wound.
Check the patient’s skin daily:
Head to toe
Front and back
Pay special attention to bony areas
Use tools like:
Lift sheets
Transfer devices
Helps avoid rubbing or sliding damage to fragile skin.
Patients with:
Chronic skin damage
Diabetes
Vascular disease
Are at higher risk for pressure injuries and slower wound healing.
Take extra precautions with these patients.
Follow infection control, assess skin regularly, move patients gently, and be aware of medical history that affects skin health.