Ch 21: Wound Healing Flashcards
What is the difference between partial thickness and full thickness wounds?
Partial thickness wounds are shallow involving full or partial epidermal loss and partial loss of dermal layer
Full thickness wounds involve total loss of both epidermal and dermal layers, extending to at least the subcutaneous tissue layer and possibly as need as the fascia, muscle layer, and bone
Which AA are thought to be conditionally essential during wound healing process?
Arginine and Glutamine
What is the recommended protein requirements for patient with or at risk for pressure injury?
1.25-1.5 g protein/kg body weight/day
How should zinc status be assessed?
No accurate, practical, cost effective method for assessing zinc status
What is the recommended kcal requirements for patient with or at risk for pressure injury?
30-35 kcals/day
When should a supplement with a high protein, arginine, and micronutrients be offered?
For adults with PU category stage III or IV or multiple PU when nutrition requirements cannot be met by traditional ONS
If concerned about over hydration, which method should be used to assess a patient’s fluid needs?
• Energy based methods are less likely to overestimate water needs, and should be used as a starting point rather than weight-based equations if the clinician is concerned about overhydration
Because excess vitamin C may cause oxalate deposit in bone/soft tissue what does the National Kidney Foundation recommends when supplementing vit C for a patient with CKD?
No more than 60-100 mg/day
What is the recommendation for supplementing vitamin A in wound healing?
High doses of glucocorticoids may cause vit A deficiency; however, no evidence of benefit from vit A supp for healing wounds or PI/ulcers-vit A is widespread in foods, and adequate amounts can be obtained with individuals consume balanced diet
What are the phases of wound healing?
Inflammatory, Proliferative, and Maturation
What term should be used to replace “pressure ulcers” in the NPUAP staging system?
Pressure injury; this more accurately describe PI in both intact and ulcerated skin
What is the most common type of chronic wound that develops in the LE?
Venous leg ulcers
What is the RDA for zinc?
11 mg/g for men and 8 mg/d for women; easily achieved by consumption of foods with high quality protein. Tolerable upper intake is 40 mg/d
What defines a chronic wound?
Wounds that have not healed within 12 weeks of initial injury
