Lesson
Decide Whether the Wound Is Truly Minor
A small surface opening can hide tendon, nerve, vessel, joint, bone, foreign-body, or crush injury. Mechanism, site, depth, contamination, function, and host risk define the pathway.
- Abrasion
- Laceration
- Puncture
- Deep structure
- Closure need
Mechanism predicts hidden risk
Identify closure and exploration needs
Find tendon, nerve, vessel, or joint injury
Life threats precede cleaning
Classify mechanism and tissue
Distinguish scrape, clean incision, irregular laceration, puncture, avulsion, crush injury, and impalement. Record object, force, time, contamination, depth, length, gaping, tissue loss, and foreign material.
Test what the wound can damage
Check active motion, strength, sensation, capillary refill, pulses, color, temperature, and joint function distal to the injury. Compare sides when safe.
Find closure and exploration needs
Deep, gaping, contaminated, facial, hand, joint, tendon, nerve, vessel, bone, or function-threatening wounds may need irrigation, imaging, exploration, closure, or specialist repair.
Escalate life threats first
Call emergency services for uncontrolled major bleeding, shock, amputation, evisceration, major impalement, airway threat, or serious chest, neck, abdominal, pelvic, or groin injury. Do not delay to clean the wound.
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Lesson
Control Bleeding Without Disrupting Hemostasis
Direct pressure controls most external bleeding. Severe hemorrhage requires emergency activation, trained escalation, rescuer protection, and careful preservation of the forming clot.
- Direct pressure
- Layered gauze
- Tourniquet
- Shock
- Blood exposure
Prevent a second exposure
Add layers without lifting the clot
Recognize failure
Use trained decisive control
Protect the rescuer
Use gloves or another barrier when possible and protect eyes and broken skin. Wash exposures and follow occupational or emergency postexposure guidance.
Apply uninterrupted pressure
Place clean gauze or cloth over the wound and press firmly. If blood soaks through, add layers rather than repeatedly lifting the original dressing and disrupting the clot.
Recognize severe hemorrhage
Rapid pooling, spurting, amputation, persistent bleeding after firm pressure, or shock signs such as confusion, pallor, sweating, weakness, or collapse require emergency services.
Escalate trained care
Life-threatening extremity bleeding can require a commercial tourniquet. Record application time and do not loosen it casually. Deeply embedded objects are stabilized rather than pulled out.
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Lesson
Remove Contamination Without Injuring Viable Tissue
Clean running water and gentle mechanical removal support healing. Blind probing, harsh chemicals, embedded objects, necrosis, and inaccessible debris require another strategy.
- Irrigation
- Mild soap
- Foreign body
- Impaled object
- Debridement
Mechanical removal is central
Do not probe blindly
Stabilize rather than extract
Debridement follows perfusion and tissue
Irrigate and inspect
Wash hands, rinse with clean running water, and use mild soap around the wound. Remove only superficial visible debris that comes away safely. Reinspect the base, edges, and function.
Avoid tissue-toxic rituals
Repeated hydrogen peroxide, alcohol, bleach, or concentrated antiseptic inside tissue can injure viable cells. Stinging is not a measure of effective wound care.
Protect embedded objects
Do not blindly probe or remove a large or deeply embedded object. Stabilize an impaled object and seek emergency care because removal can release tamponade and cause major bleeding.
Use debridement by indication
Devitalized tissue, retained contamination, ischemia, and chronic wounds require clinician-directed debridement selected by tissue, perfusion, infection, pain, and patient risk. Collagenase is not routine acute first aid.
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Lesson
Understand the Biology the Dressing Must Support
Hemostasis, inflammation, proliferation, epithelial migration, contraction, and collagen remodeling overlap. Local moisture, perfusion, tension, nutrition, and repeated trauma shape the outcome.
- Hemostasis
- Inflammation
- Granulation
- Epithelialization
- Remodeling
Stabilize the wound
Differentiate expected from progressive
Support moisture, oxygen, and nutrition
Protect from tension and re-injury
Stabilize hemostasis
Vasoconstriction, platelet adhesion, coagulation, and fibrin form the initial seal. Anticoagulants, antiplatelets, liver disease, bleeding disorders, and repeated dressing removal can destabilize it.
Interpret inflammation by trajectory
Early tenderness and limited erythema can be normal. Progressive pain, warmth, swelling, drainage, streaking, fever, or functional decline is not explained by routine repair.
Support proliferation
Fibroblasts, matrix, capillaries, granulation, contraction, and epithelial migration rebuild the barrier. Moisture balance, oxygen delivery, nutrition, glucose, pressure, edema, and smoking affect this work.
Respect remodeling
Collagen reorganizes for months and never recreates unwounded strength immediately. Tension, repeated injury, joint motion, pigment change, hypertrophic tendency, and sun exposure shape the scar.
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Lesson
Build a Clean Moist Protected Healing Environment
Current dermatology guidance favors daily gentle cleansing, plain petroleum jelly, and a protective dressing for uncomplicated minor wounds rather than drying them uncovered.
- Petroleum jelly
- Nonadherent dressing
- Moisture balance
- Daily change
- Adhesive tolerance
Remove contamination without toxicity
Limit drying and scab fracture
Balance drainage and friction
Inspect the trajectory
Use plain petroleum jelly
Apply a thin layer from a squeeze tube to a clean uncomplicated wound. It reduces drying and scab formation without routine antibiotic exposure.
Cover according to behavior
Use an adhesive bandage or nonadherent pad for many minor wounds. Larger abrasions or selected wounds may need hydrogel, silicone, gauze, or clinician-directed dressings according to drainage and site.
Keep moist, not waterlogged
Excess exudate under an occlusive dressing causes maceration. A dry adherent dressing can strip new epithelium. Match absorption and change interval to the wound.
Inspect and renew
Change at least daily and whenever wet, dirty, loose, or saturated. Remove gently, inspect size, edge, drainage, odor, pain, surrounding skin, and function, then clean and re-cover.
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Lesson
Use Topicals Without Creating Dermatitis or Resistance
Most clean minor wounds do not need topical antibiotics. Neomycin and bacitracin can sensitize skin, while harsh antiseptics can damage viable tissue.
- Antibiotic stewardship
- Contact dermatitis
- Petroleum alternative
- Tissue toxicity
- True infection
Most clean wounds need no antibiotic
Contact dermatitis can mimic infection
Cell injury can delay healing
Match depth, organism, and host
Skip prophylactic antibiotics routinely
Daily cleansing, petroleum jelly, and coverage are sufficient for most clean minor wounds. Antibiotics do not replace irrigation, foreign-body removal, drainage, or treatment of deep infection.
Recognize allergic contact dermatitis
A pruritic spreading eczematous rash under or beyond the product area can reflect neomycin, bacitracin, adhesive, preservative, or vehicle allergy rather than infection.
Identify infection multimodally
Pus, yellow or golden crust, progressive pain, warmth, swelling, spreading color change, streaking, fever, or functional decline supports evaluation. Color may look red, brown-red, violaceous, gray, or subtle across skin tones.
Treat a diagnosed indication
When bacterial infection is established, choose culture, topical, oral, procedural, or urgent care according to depth, organism, severity, host risk, and current guidance. Do not extend self-care blindly.
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Lesson
Apply Current Tetanus Prophylaxis by Wound and Immunity
Tetanus prevention requires wound classification, primary-series status, time since the last tetanus-containing vaccine, and selected TIG use. Antibiotics do not prevent tetanus.
- Clean minor
- Dirty major
- Five-year rule
- Ten-year rule
- TIG
TIG never indicated
Puncture and devitalized tissue count
Complete the primary series
Provide immediate passive protection
Classify tetanus exposure
Punctures and wounds containing dirt, soil, feces, saliva, devitalized tissue, crush injury, burns, frostbite, necrosis, or gangrene are dirty or major. Clean minor wounds have lower exposure risk.
Use series status first
Unknown, absent, or incomplete primary series requires age-appropriate tetanus-containing vaccination for every wound. After a complete series, no vaccine is needed when the last dose was less than five years ago.
Use the interval by wound
After a complete series, clean minor wounds trigger vaccination at ten or more years since the last dose. Dirty or major wounds trigger vaccination at five or more years.
Place TIG precisely
TIG is never used for clean minor wounds. For dirty or major wounds, it is indicated with unknown, absent, or incomplete vaccination and for HIV or severe immunodeficiency. Vaccine and wound care remain necessary when indicated.
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Lesson
Recognize Puncture, Functional, and Host Risk
Puncture geometry, hands and joints, feet, retained material, diabetes, neuropathy, vascular disease, immune compromise, anticoagulation, and limited self-care can turn a small wound into a major problem.
- Puncture depth
- Hand function
- Foot risk
- Foreign body
- High-risk host
Foreign body and infection risk
Test motion, sensation, and perfusion
Lower the referral threshold
Adapt the plan
Treat puncture wounds as deep until proven otherwise
A nail, fishhook, glass fragment, needle, or sharp object can carry contamination beneath a small opening. Review object, footwear, trajectory, breakage, joint or bone proximity, and tetanus status.
Protect hand and joint function
Test motion, strength, sensation, perfusion, and wound position during injury. Partial tendon injury can preserve some movement, and small joint penetrations can seed deep infection.
Protect the high-risk foot
Diabetes, neuropathy, ischemia, edema, and immune compromise increase ulcer, infection, osteomyelitis, and delayed-healing risk. An insensate wound still requires careful evaluation.
Adapt care to the person
Fragile skin, anticoagulation, malnutrition, smoking, poor vision, limited dexterity, language, supplies, transport, housing, and caregiver support change dressing and follow-up safety.
Quick check
Lesson
Measure Healing and Define the Return Rule
Wound follow-up tracks closure, drainage, pain, surrounding skin, function, perfusion, infection, foreign body, and host factors. A stalled or worsening wound is diagnostic information.
- Infection trajectory
- Delayed healing
- Dehiscence
- Scar care
- Teach-back
Compare over time
Recognize infection and dehiscence
Find the cause of delay
Protect after epithelialization
Measure the trajectory
Photograph or document size, depth, edge, drainage, pain, surrounding skin, sensation, motion, and temperature when useful. Compare over time rather than relying on one appearance.
Escalate infection or dehiscence
Progressive pain, warmth, swelling, pus, odor, streaking, fever, systemic illness, edge separation, exposed deeper tissue, or functional decline needs direct evaluation.
Investigate stalled healing
Review retained foreign body, infection, ischemia, pressure, edema, glucose, nutrition, smoking, medications, dressing moisture, adhesive injury, and wrong diagnosis.
Transition to scar protection
After epithelial closure, protect from re-injury and sun. Use clinician-directed silicone or scar care when appropriate. Do not place sunscreen or unverified scar products into an open wound.
Quick check
Module test
Check the connections.
Each attempt draws 10 questions from the complete 112 question bank.
Each attempt draws a fresh set and rearranges the answer choices.
References
Current clinical foundation.
Lecture material was synthesized with the following contemporary guidance. Verify local policy and current guidance before applying clinical information.