Wound Management Overview
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Questions and Answers

Which type of wound is characterized by a small skin opening with deep damage?

  • Puncture (correct)
  • Avulsion
  • Laceration
  • Abrasion
  • Which class of wound corresponds to a wound that is 10 hours old and has microbial levels below the infection threshold?

  • Class 1
  • Class 2 (correct)
  • Class 3
  • None of the above
  • What is the primary characteristic of a 'degloving' injury?

  • Extensive skin loss, either completely torn or separated from underlying tissue (correct)
  • Thermal damage caused by heat or chemicals
  • Superficial tearing of skin with minimal blood loss
  • Deep puncture wound caused by a sharp object
  • Which type of wound closure involves apposing wound edges within 3-5 days before granulation tissue forms?

    <p>Delayed primary closure (D)</p> Signup and view all the answers

    What is the primary mechanism by which lavage contributes to wound management?

    <p>Reducing bacterial numbers by flushing away necrotic debris (A)</p> Signup and view all the answers

    Which of the following wounds is considered a common site for decubital ulcers?

    <p>All of the above (D)</p> Signup and view all the answers

    What is the primary characteristic of a wound classified as 'infected'?

    <p>Bacterial numbers greater than 10^5 CFU (A)</p> Signup and view all the answers

    Which type of wound closure is typically seen in severe wounds where granulation tissue has already formed?

    <p>Secondary closure (A)</p> Signup and view all the answers

    Which of the following is a potential complication that can occur with wound bandaging in horses?

    <p>All of the above (D)</p> Signup and view all the answers

    What type of suture is preferred for closing a wound in a horse?

    <p>Non-absorbable monofilament (D)</p> Signup and view all the answers

    What is the most important step to take before euthanizing a horse?

    <p>Communicate with the referring veterinarian and the owner (C)</p> Signup and view all the answers

    What is the recommended treatment for a horse with cellulitis?

    <p>Aggressive therapy (C)</p> Signup and view all the answers

    What is the preferred method for draining exudate from a wound?

    <p>Both A and B are acceptable (D)</p> Signup and view all the answers

    What is the recommended treatment for a bone sequestration?

    <p>Surgical removal (B)</p> Signup and view all the answers

    What is a potential risk associated with local anesthesia in horses?

    <p>Both A and B (C)</p> Signup and view all the answers

    What is the recommended method for applying a sterile prep to a wound in a horse?

    <p>Apply the prep from the wound outwards (C)</p> Signup and view all the answers

    What is the recommended margin of normal tissue to be removed during the excision of a benign tumor?

    <p>1 cm (C)</p> Signup and view all the answers

    When excising a malignant tumor, how much normal tissue should be removed?

    <p>Greater than 2 to 3 cm (B)</p> Signup and view all the answers

    What is the primary method for addressing compressible hemorrhage?

    <p>Compression (C)</p> Signup and view all the answers

    Which of the following methods is NOT recommended for recruiting skin under tension?

    <p>Incising the incision after closure (A)</p> Signup and view all the answers

    In which scenario might a tracheotomy tube placement require deeper cutting?

    <p>For a permanent tracheotomy (A)</p> Signup and view all the answers

    What is the primary advantage of using axial pattern flaps over pedicle flaps?

    <p>Better perfusion (C)</p> Signup and view all the answers

    What technique can help prevent or correct dog ears during wound closure?

    <p>Increased suture density on concave aspects (C)</p> Signup and view all the answers

    Which factor is NOT part of the Pre-opt assessment for surgical procedures?

    <p>Weight loss history (B)</p> Signup and view all the answers

    Which classification indicates a surgical prognosis with serious complications possible and a prolonged recovery?

    <p>Fair (C)</p> Signup and view all the answers

    Skin expanders are used primarily for which purpose?

    <p>To stretch overlaying tissue for flap creation (D)</p> Signup and view all the answers

    Which procedure involves the excision of redundant skin to minimize 'dog ears'?

    <p>Elliptic incision (D)</p> Signup and view all the answers

    What is the initial step in placing a tracheotomy tube?

    <p>Make a transverse incision through the annular ligament (D)</p> Signup and view all the answers

    Which of the following types of hemorrhage might be worsened by compression?

    <p>Gunshot wound (B)</p> Signup and view all the answers

    Which type of tissues does not require resection during tumor excision due to their resistance to neoplasia?

    <p>Collagen-dense tissues (C)</p> Signup and view all the answers

    What is an important aspect of communication regarding surgical risks?

    <p>Providing clear information about potential outcomes (D)</p> Signup and view all the answers

    Which lab data are included in the 'BIG 4' for healthy animals undergoing routine procedures?

    <p>PCV/hematocrit with blood smear, TP, BUN, and blood glucose (D)</p> Signup and view all the answers

    Which surgical wound classification describes a procedure where a major break in technique occurred with gross spillage from the GI tract?

    <p>Contaminated (D)</p> Signup and view all the answers

    What is the most appropriate action regarding antibiotic use post-surgery?

    <p>Antibiotics should be given only if necessary within 60 mins of surgery. (D)</p> Signup and view all the answers

    What factor significantly increases the likelihood of colic in broodmares?

    <p>Providing foals with increased milk (A)</p> Signup and view all the answers

    What is the recommended fasting period for equines before surgery?

    <p>Overnight with water access (C)</p> Signup and view all the answers

    How can tension be reduced when closing a surgical wound?

    <p>By undermining wound edges with scissors (C)</p> Signup and view all the answers

    What is an appropriate intervention for a dehydrated patient before surgery?

    <p>Administer IV fluids (B)</p> Signup and view all the answers

    What is the rationale behind manipulating skin parallel to tension lines during surgical incisions?

    <p>To speed up wound healing and reduce dehiscence (D)</p> Signup and view all the answers

    What is the best intervention for correcting hyperkalemia in a pre-operative patient?

    <p>Administer IV fluids and possibly electrolytes (C)</p> Signup and view all the answers

    What is the primary goal of wound debridement?

    <p>To create fresh, clean margins (B)</p> Signup and view all the answers

    Which antibiotic is specifically used for effectively treating gram-negative bacteria such as Pseudomonas spp.?

    <p>Gentamicin sulfate (C)</p> Signup and view all the answers

    How effective are antimicrobial agents like neosporin once a wound is already infected?

    <p>They are ineffective (A)</p> Signup and view all the answers

    What type of bandage is the modified Robert Jones bandage primarily used for?

    <p>Wound management (B)</p> Signup and view all the answers

    When should honey be used in wound healing?

    <p>Early in wound healing (B)</p> Signup and view all the answers

    What benefit does vacuum-assisted wound closure provide?

    <p>Increased healing times (A), Improved blood flow (D)</p> Signup and view all the answers

    Which of the following is a potential caution when using antimicrobial powders?

    <p>They can act as foreign bodies (A)</p> Signup and view all the answers

    What is the purpose of the primary/contact layer in bandaging?

    <p>To transfer exudate and allow breathability (D)</p> Signup and view all the answers

    Flashcards

    Contamination

    Presence of some microbes, usually in the first few hours after injury.

    Infection

    Bacterial numbers over 10^5 CFU, where microbes invade and replicate.

    Laceration

    A wound created by tearing, can be deep or superficial.

    Avulsion

    Tearing of tissues with skin flaps, often extensive loss.

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    Decubital ulcer

    Skin compression between bony prominence and hard surface, like pressure sores.

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    Primary wound closure

    Wound edges apposed and closed within 12 hours, involves 1st intention healing.

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    Healing by contraction

    Wound left open heals naturally, involves 2nd intention healing.

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    Lavage

    Process to reduce bacterial numbers by flushing away debris.

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    Antibiotics

    Medications that kill or inhibit bacterial growth, aiding in wound healing.

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    Wound Debridement

    The process of removing dead tissue and debris to promote healing.

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    Granulation Tissue

    New connective tissue and blood vessels forming on a wound's surface.

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    Vacuum Assisted Wound Closure

    A technique that enhances wound healing by applying negative pressure.

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    Breathe Stroke Bandaging

    A bandaging technique for horses to prevent constriction.

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    Modified Robert Jones Bandage

    A common padded bandage providing support and absorption.

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    Primary/Contact Layer

    The first bandage layer that contacts the wound, facilitating drainage.

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    Honey in Wound Care

    A natural agent that enhances healing and reduces inflammation.

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    Tetanus Prophylaxis

    Unvaccinated individuals > 12 months require tetanus toxoid and anti-toxin.

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    Suture Preference

    Non-absorbable monofilament sutures are preferred, placed 5mm from the cut edge.

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    Dehiscence Warning

    Always warn about potential wound dehiscence, which is the reopening of a wound.

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    Bone Sequestration

    Dead/infected bone fragment that can harm blood supply, often needing surgical removal.

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    Wound Debridement Methods

    Methods include sharp, mechanical, or autolytic techniques for removing dead tissue.

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    Drainage Importance

    Draining is crucial to prevent exudate accumulation and dead space.

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    Equine Bandage Complications

    Complications include excessive granulation tissue, pressure sores, and bandage bows.

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    Communication Before Euthanasia

    Essential to communicate between the veterinarian, owner, and insurance before euthanizing.

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    Equine Risk Factors

    Factors affecting health in equines, including age and breed.

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    Surgical Wound Classifications

    Categories of surgical wounds based on contamination and technique.

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    Clean Wound

    No infection or breaks in sterile technique; closed in sterile manner.

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    Contaminated Wound

    Major break in technique with gross spillage; risk of infection is high.

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    Fasting for Equines

    Horses should fast overnight but have water access.

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    Tension Lines in Surgery

    Direction of incisions should be parallel to natural skin tension lines.

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    Post-Surgery Antibiotics

    Use antibiotics post-surgery only if necessary and within 60 mins.

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    Pre-surgery Patient Stabilization

    Assessing hydration, anemia, protein levels, and electrolytes before surgery.

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    Skin tension and elasticity assessment

    Evaluating the skin's ability to stretch and return, important before surgical procedures.

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    Benign tumor excision margins

    Surgical removal of a benign tumor plus 1 cm of normal tissue around it.

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    Malignant tumor excision margins

    Surgical removal of a malignant tumor plus more than 2 to 3 cm of normal tissue.

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    Pre-suture skin stretching

    Pre-stretching the surgical site to provide extra skin during closure, typically done 24 hours prior to surgery.

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    Walking sutures

    Surgical technique using continuous suture placement in a circular motion to eliminate dead space.

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    Axial pattern flaps

    Surgical flaps that include arteries and veins at their base, promoting better blood flow for healing.

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    Tissue expanders

    Inflatable devices used to stretch skin, introduced to expand subcutaneous tissue over time.

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    Dog ears correction techniques

    Methods to prevent puckers in skin following excision, like adjusting suture spacing and excising redundant skin.

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    Hypothermia

    A rapid drop in body temperature affecting consciousness and pupil equality.

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    Compressible hemorrhage

    Bleeding that can be stopped by applying compression, like a puncture wound.

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    Non-compressible hemorrhage

    Bleeding that cannot be stopped by pressure; may worsen with compression, like gunshot wounds.

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    Tracheotomy placement

    Surgical insertion of a tube into the trachea through a specific incision location on the neck.

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    Pre-operative assessment

    Evaluating a patient's history, physical exam, and lab data before surgery.

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    Surgical prognosis

    Prediction of surgery outcomes based on potential complications.

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    ASA physical status scale

    A classification system to assess the physical status of the patient before surgery.

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    Surgical site infection classification

    CDC’s criteria for categorizing infections at surgical sites post-operation.

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    Study Notes

    Wound Management

    • Golden Period: The first 6-8 hours after wound contamination, before bacterial multiplication exceeds 10⁵ CFU/gram of tissue. A visual assessment (looking for pus) can also indicate bacterial presence
    • Contaminated vs. Infected:
      • Contaminated: Presence of some bacteria within the first few hours.
      • Infected: Bacterial numbers exceeding 10⁵ CFU/gram tissue, indicating active bacterial invasion and replication.
    • Wound Classification (by time):
      • Class 1: 0-6 hours, minimal contamination.
      • Class 2: 6-12 hours, microbes haven't reached infection levels.
      • Class 3: > 12 hours, microbial levels >10⁵ CFU/gram tissue = infection.

    Major Wound Types

    • Abrasion: Superficial skin injury, heals quickly by re-epithelialization.
    • Puncture: Small skin opening with deep damage, extent of damage proportional to missile velocity.
    • Laceration: Created by tearing, deep or superficial.
    • Avulsion: Tearing of tissue from attachments, creating skin flaps, with severe skin loss (de-gloving).
    • Thermal Burn: Caused by heat or chemicals, high risk of sepsis and infection; varying degrees of damage from injury.

    Wound Closure

    • Primary Intention (1st intention): Wound edges apposed (<12 hours in equine), immediate closure
    • Delayed Primary Intention: Wound apposition within 3-5 days post debridement.
    • Secondary Intention (2nd intention): Wound left open to heal by granulation tissue formation & epithelialization (common in equine).
    • Tertiary Intention (3rd intention): Wounds left open for several days to allow granulation tissue formation before closure.

    Wound Debridement

    • Removal of dead tissue, foreign bodies, and microbes to promote healing.
    • Different methods like sharp debridement with a scalpel blade or mechanical debridement with wet-to-dry dressings, or autolytic debridement.

    Antimicrobial Agents

    • Specific agents for different wound types, avoid use of powders, and choose agents that treat infections, not just prevent them.

    Bandaging

    • Bandage Layers (in SA):
      • Primary/contact layer (e.g. telfa): transfers exudate and allows breathability, considerations for wound healing stage.
      • Secondary/intermediate layer (e.g. casting pads): reduces bacteria, provides extra padding.
      • Tertiary/outer layer (e.g. vet wrap): holds in place, protects from bacterial colonization.

    Surgical Site Infections (SSIs)

    • Classification: Incisional (actual surgical incision infection), organ/space (anatomic site infection), deep.
    • Importance: Increased incidence of mortality in patients with infected surgical sites.
    • Minimization: Pre-operative antiseptic preparation (antisepsis) to decrease infection risk.

    Surgical Considerations

    • Surgical Risks: Evaluate the quality of life and determine if the risks of surgery outweigh potential benefit.
    • Surgical Prognosis: Assess potential complications and expected recovery time (excellent, good, fair, poor, and guarded).
    • Physical Status: Assign ASA physical status based on patient condition to determine surgical risk and appropriateness.

    Anesthesia, Surgery, & Procedures

    • M^2ARCH^2E (method): Massive hemorrhage, airway (airway assessment crucial), breathing (assess breathing patterns and lung integrity), circulation (checking blood pressure to see if perfusion is possible).
    • Surgical Wound Classification: Clean, Clean-contaminated, Contaminated, and Dirty.
    • Patient Preparation: includes fasting protocols for different species, pre-operative debridement, and patient stabilization.
    • Surgical Incisions: consider direction of incisions when making them in wound.

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    Description

    This quiz covers essential concepts in wound management, including the golden period, the distinction between contaminated and infected wounds, and the classification of wounds based on time and type. Test your knowledge on different wound types such as abrasions, punctures, lacerations, and avulsions.

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