Inflammation, Wounds, and Pressure Ulcers part 4 Flashcards Preview

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Flashcards in Inflammation, Wounds, and Pressure Ulcers part 4 Deck (11)
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Wound Healing Primary Intention:
When does primary intention healing take place? And what are the edges closed by?

-when wound margins are neatly approximated
-closed by stitches, staples, skin glue
-EX: surgical incision


Wound Healing Primary Intention:
What are the 3 phases?



Wound Healing Primary Intention:

Approximation of incision edges. Migration of epithelial cells. Clot serving as meshwork for starting capillary growth

Initial (inflammatory) 3 to 5 days


Wound Healing Primary Intention:

Migration of fibroblasts. Secretion of collagen. Abundance of capillary buds. Wound fragile

granulation 5 days to 4 weeks


Wound Healing Primary Intention:

Remodeling of collagen. Strengthening of scar

Maturation 7 days to several months


Wound Healing: Secondary Intention
What are some examples and edge types?

-EX: burns, major trauma, pressure injury
-Wounds that occur from trauma, injury, and infection have large amounts of exudate and wide, irregular wound margins with extensive tissue loss.
-large amount of tissue loss, edges may not be approximated


edges not approximated

Wound Healing: Secondary intention


More cellular debris, cells, and exudate
Debris removed from wound
Greater gaping wound edges larger scar
Granulation--> edges inward and from the bottom upward

Wound Healing: Secondary Intention


Delayed closure due to infection

Wound healing: tertiary intention


When does a tertiary intention occur?

-contaminated wound is left open and sutured closed after the infection is controlled
-primary wound becomes infected, is opened, allowed to granulate, and then sutured.


What type of scar results from tertiary intention

Tertiary intention usually results in a larger and deeper scar than primary or secondary intention.