Wound Care

Wound Care as a Core Clinical Competency

Wound care is a fundamental clinical skill for the medical assistant, encompassing the assessment, cleaning, dressing, and monitoring of wounds to promote healing and prevent infection^[1]. On the Medical Assistant certification exam (e.g., CMA, RMA), candidates must demonstrate knowledge of wound healing stages, dressing selection, and aseptic technique. In the clinical setting, proper wound management reduces complications, supports patient recovery, and reflects the quality of care provided^[2].

Wound Classification and Healing Phase Architecture

Wound Classification

• Acute wound: Heals within a predictable time frame (e.g., surgical incision, minor laceration)^[3].
• Chronic wound: Fails to progress through normal healing stages within 4–6 weeks (e.g., pressure ulcer, diabetic ulcer)^[3].
• Clean (Class I): Uninfected, no inflammation; primarily closed (e.g., elective surgery).
• Clean-contaminated (Class II): Entry into respiratory, GI, or GU tract under controlled conditions.
• Contaminated (Class III): Open, fresh accidental wounds or major breaks in sterile technique.
• Dirty/infected (Class IV): Old traumatic wounds, perforated viscera, or existing clinical infection^[4].

Phases of Wound Healing

• Hemostasis: Vasoconstriction and platelet aggregation (immediate response).
• Inflammatory phase: Days 1–6; edema, erythema, warmth; phagocytosis of debris.
• Proliferative phase: Days 3–21; granulation tissue formation, angiogenesis, and epithelialization.
• Maturation/remodeling phase: Day 21 to 1 year; collagen remodeling and scar strengthening^[2].

Key Terminology

• Debridement: Removal of necrotic tissue to promote healing.
• Granulation tissue: Red, moist, granular tissue indicating healing.
• Eschar: Dry, black, necrotic tissue that delays healing.
• Exudate: Fluid (serous, sanguineous, serosanguineous, purulent) draining from a wound.
• Maceration: Skin breakdown from excessive moisture.

Assessment, Irrigation, and Dressing Selection Protocols

Wound Assessment

1. Inspect location, size, depth: Measure length, width, and depth using a sterile probe.
2. Assess wound bed: Note color (red = granulating; yellow = slough; black = necrotic).
3. Evaluate surrounding skin: Check for erythema, induration, warmth, or breakdown.
4. Document exudate: Type, color, odor, and amount (scant, moderate, heavy).
5. Assess for infection: Worsening pain, purulent drainage, foul odor, or fever^[5].

Cleaning and Irrigation

• Use sterile normal saline for irrigation; avoid hydrogen peroxide or alcohol (cytotoxic)^[1].
• Irrigate with adequate pressure (8–15 psi) using a 19-gauge needle or commercial wound irrigator.
• Clean from the least contaminated area outward to avoid introducing microbes into the wound.
• Use a new, sterile gauze for each wipe.

Dressing Selection

Choose a dressing that maintains a moist wound environment, controls exudate, and protects from contamination^[6].

Infection, Dehiscence, and Other Wound Complications

• Infection: Erythema, warmth, edema, purulent exudate, delayed healing, fever^[5].
• Dehiscence: Separation of wound edges, often with sudden gush of fluid.
• Evisceration: Protrusion of internal organs through dehisced wound (emergency!).
• Maceration: Pale, wrinkled, waterlogged skin around the wound.
• Cellulitis: Spreading erythema, pain, and induration beyond the wound margin.

Documentation Standards and Objective Wound Tracking

• Use the “R.E.D.E.” system or a similar mnemonic: Reddiness, Edema, Drainage, Edges.
• Document every change: date, time, wound measurements, appearance, exudate, dressing type, patient tolerance, and pain level.
• Take photographs in a consistent manner (ruler next to wound, good lighting) for objective trending.
• If the wound is small and healing as expected, use a simple bandage; for complex or chronic wounds, refer to a wound care specialist^[6].

Step-by-Step Wound Care Protocol and Patient Education

General Wound Care Procedure (Medical Assistant Role)

1. Prepare: Gather supplies (sterile gloves, saline, dressings, tape, waste bag).
2. Patient positioning: Expose wound, drape to maintain privacy and comfort.
3. Remove old dressing: Pull in direction of hair growth; note any adherence.
4. Assess wound: Use the assessment checklist above.
5. Irrigate: Use sterile saline, apply enough force to remove debris.
6. Dry edges: Gently pat periwound skin with dry gauze.
7. Apply new dressing: Select appropriate type; fill the wound loosely if packing is needed.
8. Secure dressing: Use tape or bandage that holds but does not restrict circulation.
9. Document: All findings and interventions.
10. Reinforce patient education: Signs to report (redness, pain, drainage, fever).

Patient Education Points

• Keep wound clean and dry between changes (unless moist therapy prescribed).
• Eat a balanced diet high in protein, vitamin C, and zinc to support healing^[2].
• Avoid smoking — reduces oxygen delivery to tissues.
• Notify provider of any worsening pain, increased drainage, fever, or chills.

Infection Control and Emergency Response to Wound Events

• Always wear sterile gloves when performing wound care for an open wound.
• Follow contact precautions if wound infection is known or suspected (MRSA, VRE).
• Never use cotton balls — fibers can shed into the wound and cause foreign body reaction.
• Do not allow tape to be applied directly on fragile periwound skin; use skin barrier wipes or nonadherent pads under tape.
• If wound dehiscence or evisceration occurs:
  • Cover with sterile saline-moistened gauze.
  • Call for immediate medical help.
  • Do not attempt to reinsert organs.
• Monitor for tetanus risk (update vaccination if wound is deep/contaminated).

Exam-Focused Clinical Priorities and Memory Mnemonics

• Remember the phases of healing in order: Hemostasis → Inflammatory → Proliferative → Maturation.
• Know the difference between cleaning: Always clean from least contaminated to most contaminated (center outward for clean wounds; around to center for infected).
• Saline is the irrigant of choice — likely tested on the exam.
• If a question asks for dressing for a dry, necrotic wound: Choose hydrogel (moisture donation).
• For heavy exudate: Choose alginate or foam.
• Watch for surgical wound vs. chronic wound cues: Surgical = clean, may use transparent film; chronic = needs moisture balance.
• Documentation mnemonic: “ABCDE” of wound care: Appearance, Bed color, Closure status, Drainage, Edges.
• Never pack a wound tightly — loosely fill to allow drainage and prevent pressure necrosis.
• Evisceration = surgical emergency — cover with sterile moist gauze, do not reassemble, call surgeon.

References

1. Bonewit-West, K., Hunt, S., & Applegate, E. (2018). Clinical Procedures for Medical Assistants (10th ed.). Elsevier. https://doi.org/10.1016/C2016-0-02536-9
2. Streets, S. (2020). Wound care essentials. In Medical Assistant Exam Review (5th ed.). McGraw‑Hill. https://www.mheducation.com/highered/product/1260142829
3. Hampton, S., & Collins, F. (2012). Wound Care in Clinical Practice. Springer. https://doi.org/10.1007/978-1-4471-2638-4
4. Centers for Disease Control and Prevention. (2017). Guideline for the Prevention of Surgical Site Infection. https://www.cdc.gov/infectioncontrol/guidelines/ssi/index.html
5. Wound, Ostomy and Continence Nurses Society. (2020). Guideline for Management of Wounds in Patients with Lower‑Extremity Neuropathic Disease. https://www.wocn.org/
6. National Institute for Health and Care Excellence (NICE). (2014). Pressure ulcers: prevention and management (Clinical guideline CG179). https://www.nice.org.uk/guidance/cg179