Ulcers and Burns Flashcards
Any lesion caused by unrelieved pressure usually over a bony prominence that results in damage to
underlying tissue
Pressure ulcers
How long can superficial tissue tolerate pressure?
2-8 hours
How long can deep muscles, connective, and fat tissues tolerate ischemia?
2 hours
Epidermis, non-blanching erythema
Stage 1
epidermis/dermis; shallow opening; blisters
Stage 2
Full thickness skin loss involving damage to, or necrosis of, subcutaneous tissue that may extend down to, but not through, underlying fascia
Stage 3
Full-thickness skin loss with extensive destruction, tissue necrosis, or damage to muscle, bone, or supporting structures (e.g. tendons, joint capsule).
Stage 4
Full-thickness skin and tissue loss in which the extent of tissue damage within the ulcer cannot be confirmed because it is obscured by slough or eschar.
Unstageable
Intact or non-intact skin with localized area of persistent non-blanchable deep red, maroon, purple discoloration,
or epidermal separation revealing a dark wound bed or blood-filled blister.
Deep Tissue Pressure Injury
Medical devices–related pressure injuries result from the use of devices designed and applied for diagnostic or therapeutic purposes.
Medical Device-Related Pressure Injury
Most common site of pressure ulcer
Ischium (28%)
2nd most common site of pressure ulcer
Sacrum (17-27%)
Common site of pressure ulcer in a w/c bound patient
Ischial tuberosities and feet
Least common site of pressure ulcer
Heel (9-18%)
Common site of pressure ulcer in children aged 10 wks - 13 y/o
Occiput
Common site of pressure ulcer in patients with Acute SCI
Sacrum and Heels
An ulcer caused by venous insufficiency
Venous ulcer
Where can venous ulcer be found?
Medial malleolus
S/Sx of Diabetic Ulcer
Loss of sensation
Tingling sensation
Complete or partial arterial blockage may lead to tissue necrosis and or ulceration
Arterial wounds
S/Sx of Arterial Wounds
Pulselessness of the extremity
Painful ulceration
Delayed capillary return
Cold skin
Where can arterial wounds be found?
Lateral malleolus
Tissue damage and cell death caused by intense heat, electricity, ultraviolet radiation (sunburn) or certain
chemicals (such as acids), which denature proteins and cause cell death in the affected areas
Burns
Causes of burns
Thermal
Chemical
Electrical
Radiation