Wound Therapies - Class 3

Question 1

other adjunctive therapies

Answer 1

negative pressure wound therapy

non-contact normothermic wound therapy

electrical stim

therapeutic ultrasound

ultraviolet C

hyperbaric oxygen therapy

low level laser therapy

Question 2

negative pressure wound therapy (NPWT)

Answer 2

applies sub atmospheric pressure or suction tot he wound bed

via a computerized therapy unit attached to an open cell foam sponge that is placed in the wound

secured with an adhesive drape

Question 3

non contact normothermic wound therapy

Answer 3

consist of a non contact wound cover with a 38(degree C) warming card controlled by a temp unit

Question 4

non contact normothermic therapy maintains

Answer 4

a warm humid wound environment

Question 5

non contact normothermic therapy affects healing by increasing

Answer 5

tissue perfusion from microvasculature

PO2 of subcutaneous tissue

bacterial killing by neutrophils

Question 6

non contact normothermic therapy affects healing by decreasing

Answer 6

affinity of O2 to Hb

tissue vulnerability to infection

Question 7

E stim

Answer 7

transepithelial potential

Na+ current injury

galvanotaxis

Question 8

transepithelial potential

Answer 8

diffusion of Na+ ions and through epithelial cell membranes

intact skin w/ (-) charge

Question 9

Na+ current injury –> after wounding

Answer 9

Na+ escapes and current flows into the wound

wound w/ a (+) charge as compared to skin

Question 10

Na+ current injury –> no current when

Answer 10

wound allowed to dry out and scab

Question 11

ultrasound

Answer 11

non thermal effects

through acoustic streaming affect cellular membrane permeability

Question 12

ultrasound –> inflammatory phase

Answer 12

mast cell degranulation and histamine release

chemotactic stim

macrophage stim to release GFs that stimulate fibroblasts

Question 13

ultrasound –> proliferative phase

Answer 13

stimulates fibroblasts

increases wound contraction

endothelial cell activity

mast cells release angiogenic factors

Question 14

ultrasound –> remodeling phase

Answer 14

strengthens scar tissue

increases elasticity

Question 15

UV C

Answer 15

vasodilation

stratum corneum thickening

increase vitamin D production

bactericidal effects by inhibiting DNA synthesis

pigmentation augmentation

Question 16

vasodilation –> UV C

Answer 16

increase cellular activity

O2 delivery

Question 17

stratum corneum thickening –> UV C

Answer 17

epidermal proliferation

Question 18

increase vit D production –> UV C

Answer 18

vit D increases calcium and phosphorus absorption

Question 19

hyperbaric O2 therapy (HBO)

Answer 19

delivered to arterial blood

having pt breathe in 100% O2 at elevated atmospheric pressures of 2.0-2.5 ATA

Question 20

HBO –> what is increased

Answer 20

PO2

from more dissolved O2 in blood

Question 21

HBO stimulates

Answer 21

healing

providing more O2 to macrophages, neutrophils and fibroblasts

Question 22

LLLT

Answer 22

using photochemical processes

photons are absorbed in cytochromes w/in mitochondria and cell membrane

Question 23

LLT causes

Answer 23

changes in membrane permeability

increased ATP levels

DNA production

Question 24

LLLT physiological changes

Answer 24

Improved cell proliferation

Change in cell membrane permeability to calcium uptake

Pain relief as a result of increased endorphin release

Increased serotonin

Suppression of nociceptor action