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51 Cards in this Set

  • Front
  • Back
What is a wound?
any break in the external or internal surfaces of the body involving a separation of tissue and caused by external injury or force
How are wounds classified if they are produced by a sharp instrument or object?
incised, or cut
What is a puncture?
if it is caused by a pointed or narrow instrument
open wound which penetrates the skin and underlying tissue
What is a laceration?
if there is tearing of the tissue
made by object that tears tissue resulting in irregular wound edges
What is a contusion?
if there is a substantial amount of tissue bruised
closed wound
involves a blow from a blunt object resulting in swelling, discoloration, ecchymosis
What is penetrating?
open wound that penetrates the skin and the underlying tissue
What is subcutaneous?
if it involves the deep destruction of tissue w/ a relatively small opening, or none at all, in the surface
What are septic wounds?
infected wounds which are contaminated by bacteria which can cause suppuration or shedding of tissue
What is an incision?
open wound, painful
deep, shallow
What is an abrasion?
open wound involving the skin
painful
involves scrapping or rubbing the surface of the skin by friction
What is partial thickness?
confined to epidermal and dermal layers
What is full thickness?
involving the dermis and epidermis, subcutaneous tissue and possibly the muscle and bone
What is a clean wound?
an aseptically made wound, that does not enter the alimentary (guts), respiratory or genito-urinary tracts
What is a clean contaminated wound?
surgical wounds in which the alimentary, respiratory, and genitals or urinary tract has been entered; no infection
What is a contaminated wound?
wounds exposed to excessive amounts of bacteria; inflamed
What is dirty or infected wounds?
containing dead tissue and w/ evidence of clinical infection
purulent discharge
What is a serous wound drainage?
clean, watery; consists chiefly of serum derived from blood and serous membranes
What is a purulent wound drainage?
thick, yellow, green, tan, or brown; consists of serum and pus
What is a sanguienous wound drainage?
bright red, indicative of active bleeding; consists of serum and RBCs
What is a serosanguineous wound drainage?
pale, red, watery mixture of serous and sanguineous
What are the two major processes included in the defensive or inflammatory phase?
hemostatis
phagocytosis (inflammation)
What is hemostatis?
blood vessels constrict, platelets aggregate, bleeding stops, scabs are formed, preventing entry of infectious organisms
What is the inflammatory process?
inflammation increases blood flow, to wound resulting localized redness and edema, attracts WBCs and wound growth factors
results in calor (warmth) and rubor (hyperemia) redness
WBCs arrive to clear debris from the wound
What happens during the proliferative phase of wound healing?
collagen synthesis
establishment of new capillaries
creation of granulation tissue
wound contraction
epitheliazation
What happens during the remodeling or maturation phase?
final healing stage may continue for 1 year or more
remodeling of scar tissue to provide wound strength
What is the first\primary intention healing? eg. of something that would have this type of healing
partial thickness wounds
a clean incision is made w/ primary closure and minimal scarring and tissue loss
expected when the edges of clean surgical incisions are sutured together
rapid healing w/ minimal infection risk
tissue loss is minimal or absent if the wound is not contaminated w/ microorganisms
abrasion or skin tear
What is the second intention healing? eg. of something that would have this type of healing
granulation
accompanies traumatic open wounds w/ tissue loss or wounds w/ high microorganism counts
goes through a process that involves scar tissue formation
delayed healing and extensive infection risk
contaminated surgical wound, pressure ulcer
What kind of medications can delay wound healing?
steroids
What is the greatest risk the 1st 48 hours after surgery?
hemorrahge- persistent arterial and/or venous bleeding
What would you do with a pt with emergent bleeding?
apply pressure dressing to wound and monitor vitals
What are the s/s of bleeding?
decreased BP
increased HR
rapid, thready pulse
restlessness
diaphoresis
clammy, pale, cold skin
oliguria- decreased urine output
What are the s/s of infection?
increased temp
tenderness/pain around wound site
increased WBCs
inflamed wound edges
purulent drainage
What is dehiscence?
abdominal wound in which the layers below the skin separates
What is evisceration?
protrusion of the abdominal viscera
What would you do if a pt had dehiscence w/ possible evisceration?
support the site w/ a sterile dressing soaked in sterile normal saline
position the pt on back w/ knees bent to decrease the pull on the incision
notify MD
What are the s/s of dehiscence?
partially or totally disrupted wound edges
appreciable increase in wound drainage
sensation that something gave
What are the s/s of evisceration?
totally disrupted wound edges
apprecialbe increase in wound drainage
sensation that something let go
protrusion of viscera and/or organs through a ruptured wound
What is fistula?
abnormal passage between 2 organs or between an organ and the outside of the body
What are the s/s of fistula?
chronic drainage
skin breakdown
What would you assess on a wound?
etiology
location
stage
extent of tissue loss
phase of healing
wound size
presence of undermining, sinus tracts or tunnels
condition of the wound bed
volume of exudates
condition of periwound skin
presence of pain
What are decubitus ulcers?
any skin lesion caused by unrelieved pressure that results in damage to the underlying tissue
What are the purposes of dressings?
to protect the wound from mechanical injury
splint or immobilize a wound
absorb secretions
prevent contamination from blood drainage
promote homeostasis
to debride wounds
to kill/inhibit microorganisms
to provide a physiologic environment that is inducive to healing
provide mental and physical comfort
What are dry-to-dry dressings?
used for wounds closing by primary intention
What are the advantages of dry-to-dry dressings?
offers good protection, absorption and provides pressure
What are the disadvantages of dry-to-dry dressings?
adhere to wound surface when drainage dries; can cause pain and disruption of granulation tissue
What is a wet-to-dry dressing?
used for untidy or infected wounds that must e debrided and closed by secondary intention
saturate gauze with sterile NS or an antimicrobial solution for packing into the wound
cover wet dressings w/ dry
change when the dressing dries out
What is wet-to-wet dressing?
used on clean, open wounds or on granulating surfaces
provides a more physiologic environment which can enhance the local healing processes and assure greater pt comfort
surrounding tissue can become ulcerated
increase risk of infection
What are the purposes of drains?
placed in wound only when abdominal fluid collection is present
placed near the incision site
drains placed within the wound is attached to a portable suction with a collection container
What are binders and bandages for?
create pressure over body parts
immobilize body parts
reduce or prevent edema
secure a splint
secure a dressing
What is hot therapy used for?
used to dilate peripheral blood vessels to increase tissue metabolism, reduce blood viscosity and increased capillary permeability, reduces muscle tension and helps relieve pain
What does cold therapy do to a wound?
constricts peripheral blood vessels, reduces muscle spasms, and promotes comfort, reduces blood flow to tissues
decreases the local release of pain producing substances such as bradykinin, histamine, and serotonin