Trauma part 1 Flashcards
How is the extent of injury calculated in children with burns?
Different body proportions such as the infant head being bigger than the body change the rule of nines, and so we do it by age surface area.
Depth of injury/burn categories?
Why we need to differentiate these?
Superficial
Partial thickness
Full-thickness
Different depths require different plans of care
Explain superficial depth
What is healing like?
Just the epidermis or top layer of the skin which will be dry, erythemic, and painful.
Can heal in a couple days without scarring
Explain partial thickness depth
What is healing like?
Includes the epidermis and dermis parts of the skin which will appear as mottled, red, blistered, and painful.
Will heal within 14 days and could have a scar
Explain full - thickness depth
The epidermis, dermis, and subq/muscle tissue are affected. Skin may be dry and leathery without stretch ability and without sensation due to nerve damage.
Healing takes longer and can have complications.
If the severity of the burn is extensive, what are some complications to consider?
Scarring & contractures Loss of ability/function of body parts affected Cosmetic appearance Infection Ischemia Respiratory complications Fluid shifts
What is a common reason children get circumferential burns?
What sort of complications can occur from circumferential burns around the trunk?
What other circumferential complications can happen to any part of the body?
Due to hot water burns when bathing.
The burn can develop eschar which doesn’t allow lungs to stretch which affects respiratory system. It also may just hurt to breath as well.
If a burn is circumferential, it may cut off circulation to distal parts.
How is severity of injury determined
Extent and depth of burn, body parts involved, patient’s age, and concomitant injury and illnesses
What system can be affected if the neck and face are burned?
Respiratory issues bc the airway may be burned too and cause edema and obstruction
Why is an infant and elderly person’s skin a concern when it comes to burns?
Both infants and elderly have thinner skin that is more fragile which can be more damaged from burns. Skin is an important organ
What are infant’s protein stores like and how can that impact a burn they have? What is the care here?
Infants have less protein stores. And they would need the protein to recover from a burn. To help them, we’d need to provide nutritional support.
What is an infant’s immune response like? How does that affect them if they have a burn?
An infant’s immune response is immature. And it can lead to increased risk of infection from a burn site.
So give antibiotics if necessary.
What is an infants fluid proportional like?
What about renal functioning?
They have more fluid compared to size which makes fluid shifts have more of an impact on them and make them more out of balance. A burn can definitely throw them out of balance here.
Infant renal function is also immature. If there’s more fluid shifting, that hurts the blood volume and ultimately hurts the kidneys perfusion
Three zones of injury
Zone of coagulation
Zone of stasis
Zone of hyperemia
Zone of coagulation
The necrotic, destroyed portion of the burn. No coming back from this, and so just needs to be removed/sloughed off.
Zone of stasis
Middle zone where the area is still alive but very injured and abnormal. Will do watchful waiting to see how this zone does.
Zone of hyperemia
The alive zone that has remained metabolically active and gets blood flow still. This is the zone we need to really focus on bc we want to make sure it stays this way and we have the most control over it.
It may even be hyperactive from working to keep itself alive. Still viable.
Order of body’s local response to a burn that explain fluid shifting due to a wound
What is the deciding factor on how much fluid shifting will happen
1) Vasodilation of vessels and increased hydrostatic pressure
2) More permeability
3) Water and electrolytes move into the interstitial
4) Oncotic pressure is lost and so edema develops
Depends on the SA of the wound. If it is bigger = more shifting
If fluid shifting is going on due to a wound/burn, what does that do to blood?
How do we treat this?
How long will the fluid shift last? And how will we know?
Blood volume of vasculature will lose volume and so perfusion/cardiovascular can be affected leading to decreased CO
Need to replace the fluids asap.
Fluid shift lasts around 72 hours.
Once it’s over, the I&O may increase, weight loss, and loss of edema occur.
What is the renal system directly tied to?
The cardiovascular system. If the heart’s CO isn’t enough, the kidneys will stop functioning adequately.
What does an electrical burn do to muscles?
What does this have to do with the kidneys ability to function? How do we intervene?
An electrical burns travels through the whole body affecting muscles by releasing Myoglobin protein.
Myoglobin has large molecules that can plug the kidneys if too much enters.
We need to make sure we are flushing kidneys with enough fluid to make sure the plug doesn’t happen.
What is compartment syndrome?
How does this occur in burns and cause neurovascular changes?
What makes this more likely to happen?
Compartment syndrome is when there’s too much pressure that it turns inward and affects its surroundings like organs, muscles, fascia, etc.
The burn can cause the edema to occur, within 18-48 hours and the fluid can accumulate so much in the tissues that Compartment syndrome occurs which damages nerve pathways and restrict blood flow.
More likely if you have eschar tissue involved bc the tissue doesn’t stretch and so the pressure build up sooner.
How is compartment syndrome treated?
They can do a tissue release where they cut the fascia/eschar open with a scalpel so whatever is adding pressure can expand.
- only issue here is you’d have to treat the incision as a wound , watch for infection, and even sometimes they can’t even do this bc the area is so invasive
BC if they don’t do this, its gonna hurts nerves.
How is the GI affected by burns/wounds? Risks? Tx?
The decrease in perfusion can lead to ischemia of GI tract and therefore erosion, necrosis, and perforation can happen.
There’s also a risk for ileum and ulcerations from stress.
Can give PPI for these
May need to decompress the GI before they vomit
