Laceration
tear in skin, puncture
irregular in shape
simple of complicated
Abrasion
rubbing off of skin surface
Contusion
Blunt force injury (results in closed hematoma)
Incision
a cut produced surgically by a sharp instrument that creates and opening into an organ or space in the body
a puncture wound
is a stab wound made for a drainage system
Sterile Procedure
Free of Microorganisms
Sutures
Sew wound closed
staple
hook edges of skin together with staple, pull straight from the middle
Approximation
wound edges are healing together
what we want in surgery
Exudate
fluid consisting of plasma which is secreted during the inflammatory phase of healing
Decreases/resolves day 5
Epithelial tissue is
seen by day 4
Remove sutures/staples by when?
day 9 to 14
What diseases cause chronic wounds
chronic venous insufficiency, peripheral artery disease, diabetes
Diseases that expose individuals to lower extremity wounds
venous disease, arterial disease, neuropathic disease
Wound Classifications:
Class 1
not infected or inflamed
Wound Classifications:
Class 2
clean/contaminated; minimal bacteria and closed after procedure
Wound Classification:
Class 3
Contaminated; high bacterial count. May interfere with healing. If surgical might be left open and require long term management
Wound Classification:
Class 4
Dirty wound; high bacterial count. Gangrene, necrotic, purulent drainage
Stages of wound healing:
Inflammatory stage
begins immediately after surgery, lasts about 3-6 days
Stages of wound healing:
Proliferative stage
begins on day 3 or 4, Lasts 3 to 24 days
Stages of wound healing:
Maturation stage or remodeling stage
begins Day 21, can last months to 1-2 years
Phases of wound healing:
Hemostasis
Termination of bleeding starts as soon as the injury occurs platelets adhere to the walls of the injured vessels and a clot begins to form. The fibrin in the clot begins to hold the wound together and bleeding subsides...Example a scab(extra layer of protection
Usually happens in the first 2 hours after the injury
Phases of wound healing:
Inflammatory
initial increase in the flow of the blood elements and water out of the blood vessels into the vascular space
This process causes the cardinal signs of inflammation
redness, heat, edema, pain and tissue dysfunction. White blood cells appear and begin to engulf the pathogen, if infection is not present these will decrease
Reconstruction
collogen production appears during this phase, begins on the 3rd or 4th day after the injury and lasts 2 to 3 weeks
Maturation
healing begins when granulation tissue is visible, 3 weeks after surgery fibroblasts begin to exit the wound and the would continues to gain strength
Internal wounds heal faster than external wounds..Keyloid may form during this phase
Process of wound healing
Primary intention
wounds with skin tissue close together, little tissue is lost, minimal scaring result
Process of wound healing
Secondary intention
would edges are not close together, pus has formed, ad the would must granulate to heal, pus like drainage, would may be OPEN to drain, drain is placed or packed, with gauze to allow it to drain , the necrotic or dead tissue dissolves and the wound fills with granulation tissue
Process of wound healing
tertiary intention
a contaminated would is left open and closed later after the infection is under control, granulation tissue begins to grow and then that tissue is sutured together, results in larger deeper scar tissue
Wound closures
Sutures
Threads of wire, silk, steel, cotton, linen, or nylon are used to sew body tissue together.
Dissolvable, may be placed in deep tissue layers in deep wounds and superficially to close the wound.
Retention ones may be left in place for up to 3 weeks.
Staples
• Made of stainless-steel wire
• Primarily used in abdominal
incisions and orthopedic surgery
• Remove every other suture or
staple and place steri strips if the incision starts to
come
apart leave the other in place.
General Suture and Staple policies
- Usually removed in 7 to 10 days after surgery.
▪ May be done all at once or in phases.
▪ Steri strips are usually used after the suture or staple is removed.
Steri-strips
Stringed tape which holds the skin together.
Butterfly strips
Tape which holds the skin together.
Transparent sprays and films
Sticky piece of clear material.
Low Hgb in men
Less than 14/100mL
Low Hgb in women
Less than 12/100 mL
Wound Assessment
Measurement
Length(measure head to foot), Width(measure side to side) and Depth
(Use cotton
swab or wound measurement device)
Wound Assessment
Measurement
Tunneling
narrow channel or passageway extending any direction from the
base
of the wound. Use clock face to describe location.
Exudate
leaking slowly from the wound
Drainage
accumulation of body fluid from a body cavity, wound or other source of discharge.
What amount of drainage should you notify the doctor about if it is more than this amount in 24 hours?
Greater than 300 mls
Sanguineous
bloody fluid, indicates active bleeding
Serosanguineous
pale, red, watery. It is a mixture of serous and
sanguineous fluid
serous
clear, watery plasma
Wound Color
Red
Healthy(cover wound), granulation tissue,
Yellow
Purulent drainage (Clean Wound)
Slough
Yellow/gray (Clean wound)
Black
Eschar (Debride wound)
Peri wound skin integrity
color, texture, temperature and description of any areas
that
are open, stripped or have a rash.
Closed drainage
Airtight device that prevents environmental contaminants
from
entering the wound
JP, Hemovac, Chest tube drainage, foley catheter
Open drainage
passes through and open-ended tube into a receptacle or onto a
dressing. This kind of
drain is placed to help fluid escape the
surgical site. Examples can be used post-op for
an anal fistula.
Examples of open drainage system
Penrose Drain
Suction drainage
uses a pump or some type of suction to extract the fluid. Gentle suction can be used to help gravity move the exudate. Ex. JP drain, Hemovac, Chest tube