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51 Cards in this Set
- Front
- Back
What is a wound?
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any break in the external or internal surfaces of the body involving a separation of tissue and caused by external injury or force
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How are wounds classified if they are produced by a sharp instrument or object?
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incised, or cut
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What is a puncture?
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if it is caused by a pointed or narrow instrument
open wound which penetrates the skin and underlying tissue |
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What is a laceration?
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if there is tearing of the tissue
made by object that tears tissue resulting in irregular wound edges |
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What is a contusion?
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if there is a substantial amount of tissue bruised
closed wound involves a blow from a blunt object resulting in swelling, discoloration, ecchymosis |
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What is penetrating?
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open wound that penetrates the skin and the underlying tissue
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What is subcutaneous?
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if it involves the deep destruction of tissue w/ a relatively small opening, or none at all, in the surface
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What are septic wounds?
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infected wounds which are contaminated by bacteria which can cause suppuration or shedding of tissue
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What is an incision?
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open wound, painful
deep, shallow |
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What is an abrasion?
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open wound involving the skin
painful involves scrapping or rubbing the surface of the skin by friction |
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What is partial thickness?
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confined to epidermal and dermal layers
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What is full thickness?
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involving the dermis and epidermis, subcutaneous tissue and possibly the muscle and bone
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What is a clean wound?
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an aseptically made wound, that does not enter the alimentary (guts), respiratory or genito-urinary tracts
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What is a clean contaminated wound?
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surgical wounds in which the alimentary, respiratory, and genitals or urinary tract has been entered; no infection
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What is a contaminated wound?
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wounds exposed to excessive amounts of bacteria; inflamed
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What is dirty or infected wounds?
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containing dead tissue and w/ evidence of clinical infection
purulent discharge |
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What is a serous wound drainage?
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clean, watery; consists chiefly of serum derived from blood and serous membranes
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What is a purulent wound drainage?
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thick, yellow, green, tan, or brown; consists of serum and pus
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What is a sanguienous wound drainage?
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bright red, indicative of active bleeding; consists of serum and RBCs
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What is a serosanguineous wound drainage?
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pale, red, watery mixture of serous and sanguineous
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What are the two major processes included in the defensive or inflammatory phase?
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hemostatis
phagocytosis (inflammation) |
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What is hemostatis?
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blood vessels constrict, platelets aggregate, bleeding stops, scabs are formed, preventing entry of infectious organisms
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What is the inflammatory process?
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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 |
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What happens during the proliferative phase of wound healing?
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collagen synthesis
establishment of new capillaries creation of granulation tissue wound contraction epitheliazation |
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What happens during the remodeling or maturation phase?
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final healing stage may continue for 1 year or more
remodeling of scar tissue to provide wound strength |
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What is the first\primary intention healing? eg. of something that would have this type of healing
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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 |
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What is the second intention healing? eg. of something that would have this type of healing
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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 |
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What kind of medications can delay wound healing?
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steroids
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What is the greatest risk the 1st 48 hours after surgery?
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hemorrahge- persistent arterial and/or venous bleeding
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What would you do with a pt with emergent bleeding?
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apply pressure dressing to wound and monitor vitals
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What are the s/s of bleeding?
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decreased BP
increased HR rapid, thready pulse restlessness diaphoresis clammy, pale, cold skin oliguria- decreased urine output |
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What are the s/s of infection?
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increased temp
tenderness/pain around wound site increased WBCs inflamed wound edges purulent drainage |
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What is dehiscence?
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abdominal wound in which the layers below the skin separates
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What is evisceration?
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protrusion of the abdominal viscera
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What would you do if a pt had dehiscence w/ possible evisceration?
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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 |
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What are the s/s of dehiscence?
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partially or totally disrupted wound edges
appreciable increase in wound drainage sensation that something gave |
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What are the s/s of evisceration?
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totally disrupted wound edges
apprecialbe increase in wound drainage sensation that something let go protrusion of viscera and/or organs through a ruptured wound |
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What is fistula?
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abnormal passage between 2 organs or between an organ and the outside of the body
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What are the s/s of fistula?
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chronic drainage
skin breakdown |
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What would you assess on a wound?
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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 |
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What are decubitus ulcers?
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any skin lesion caused by unrelieved pressure that results in damage to the underlying tissue
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What are the purposes of dressings?
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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 |
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What are dry-to-dry dressings?
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used for wounds closing by primary intention
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What are the advantages of dry-to-dry dressings?
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offers good protection, absorption and provides pressure
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What are the disadvantages of dry-to-dry dressings?
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adhere to wound surface when drainage dries; can cause pain and disruption of granulation tissue
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What is a wet-to-dry dressing?
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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 |
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What is wet-to-wet dressing?
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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 |
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What are the purposes of drains?
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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 |
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What are binders and bandages for?
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create pressure over body parts
immobilize body parts reduce or prevent edema secure a splint secure a dressing |
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What is hot therapy used for?
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used to dilate peripheral blood vessels to increase tissue metabolism, reduce blood viscosity and increased capillary permeability, reduces muscle tension and helps relieve pain
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What does cold therapy do to a wound?
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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 |