Flashcards in The Impact of Nutrition With Wound Recovery Deck (60)
Sufficient amounts of what 6 nutrients are required for homeostasis, repair, and regeneration?
Clinical dehydration is defined as a _% decrease in body weight due to fluid loss
Healthy individuals without open would should consume __-__ mL of water per kg of body weight daily
Patients on air-fluidized beds, specialty beds for patients with severe pressure ulcers, required up to __-__ mL of water per kg of body weight daily
What 5 functions are affected if there is protein deficiency?
- Collagen synthesis
- Granulation tissue formation
- Immune function (phagocytosis)
Protein deficiency alters osmotic pressure allowing fluid to move from within the vasculature to the interstitium which impairs healing in 2 ways, what are they?
1) edema decreases oxygen's ability to diffuse into the affected area
2) the pressure created by the edema can restrict blood flow within the affected area, further decreasing the availability of oxygen and allowing the accumulation of metabolic waste products
True or False
Patients with heavily draining wounds and those with large surface area wounds can lose a significant amount of protein through drainage
The balance of what element is essential in determining whether or not a wound patient is protein deficient?
It is suggested that a wound patient ingests __-__ grams of protein per kg of body weight daily
Carbohydrates in what form provide the energy needed to power the repair and regeneration process?
Carbohydrates have a protein-sparing affect, what does that mean?
If sufficient energy is not attained from a patient's diet the body with convert fat and protein to energy - which can lead to protein deficiency.
It is suggested that a wound patient ingests __-__ kcal per kg of body weight daily
What is the most important role fat plays in wound healing?
It provides needed energy source to fuel cellular processes when carbohydrate sources have been depleted
Fat is also required to carry fat-soluble vitamins (A, E, and K) that help with what?
thermoregulation by providing insulation
Fats in the form of free fatty acids are vital components of what?
cell membranes and are required for the synthesis of new cells
In what 3 ways does vitamin A (retinol) enhance the healing process?
- collagen synthesis
- granulation tissue formation
- facilitates epithelialization
What affect does the supplementation of vitamin A have on patients taking corticosteroids?
It may reverse the inhibitory effects of long-term corticosteroid therapy, including decreased collagen synthesis, granulation tissue formation, and wound contraction
Vitamin A supplementation may also ____ wound tensile strength and _____ the risk of wound dehiscence
What type of vitamin A supplementation is recommended?
What role does vitamin C (ascorbic acid) have on wound healing?
It is needed to build and maintain tissues. It also helps the body absorb iron and is required for collagen synthesis
What 3 things does vitamin C deficiencies result in?
- altered capillary integrity
- decreased wound tensile strength
- increased risk of wound dehiscence
How does vitamin C help control infection?
By activating WBCs and enhancing their ability to migrate into the wound region
Vitamin C is also an antioxidant which results in what?
A limitation in the damaging effects of free radicals
True or False
Pretreatment of irradiated skin with Vitamin C may limit skin damage associated with radiation
What role does vitamin K play on wound healing?
It is essential for blood clotting, so deficiencies may lengthen the inflammatory phase
What role do B-complex vitamins play in wound healing?
- WBC function
- antibody formation
- resistence to infection
- facilitate normal fibroblast function and collagen synthesis which improves wound tensile strength
Vitamin E is a fat-soluble antioxidant which helps to prevent what?
free radical–related cellular damage
What are 3 roles vitamin E plays in wound healing?
- Decreases inflammatory phase of wound healing
- Enhances immune function
- Decreases platelet adhesion
What are 4 microminerals and 2 macrominerals that are important for the would healing process?