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Burns
Burns
62
Other
Not Applicable
07/27/2010

Additional Other Flashcards

 


 

Cards

Term
what are the different mechanism of burn injuries (8)?
Definition

·   Flame

·   Scald: contact with hot liquids or steam

·   Heat contact: contact with a motorcycle muffler or touching a hot stovetop

·   Chemical: bleach, lye, or hydrofluoric acid. 

·   Electrical: electrical current travels through the body.  Commonly, electrical injuries will include 2 wounds: the entrance wound and the exit wound, the exit wound usually being larger in size. 

·   Frostbite

·   Sunburn: heat contact injury

·   Smoke inhalation and carbon monoxide poisoning

Term
this is the thin , top most layer of the skin.
Definition
epidermis
Term
this layer is thicker and located deeper to the epidermis.
Definition
dermis
Term
this layer lies deep the the dermis
Definition
subq tissue and fat
Term
first degree burn affects only the _.
Definition
first degree burn affects only the epidermis.
Term
this injury affects the epidermis and varyin glevels of the dermis
Definition
second degree burn
Term
this injury extends thru the entire epidermis and dermis
Definition
third degree burn
Term
the zone of _ is center of burn wound; area of burn wound where tissue necrosis or skin loss has occurred
Definition
zone of coagulation
Term
thsi is located deep and peripheral to the zone of coagulation.
Definition
Zone of stasis which is the area of tissue injury where cells are viable but can still sustain damage.  Within this zone, there is vasoconstriction and ischemia caused by inflammatory mediators. 
Term
what lies peripheral to and below the zone of stasis
Definition
zone of hyperemia
Term
what occurs in the Zone of hyperemia
Definition
Within the zone of hyperemia there is minimal cell injury.  This zone contains vasodilation caused by inflammatory mediators.
Term

these are characteristics of what type of burn:

Involves epidermis only

•Red color, dry skin

•No blisters

•Painful bc nerve endings irritated

•Will heal spontaneously in 1-2 weeks

•Pigment change

•No scarring

 

Definition
first degree burn
Term
sunburn is an example of _ degree burn
Definition
sunburn is an ex of first degree burn
Term

these are characteristic of what type of burn:

superficial partial thickness burn wound

•Involves entire epidermis and upper third of dermis (hair follicles and sweat glands not involved)

•Blisters slough to reveal pink to red, moist wound

•Painful bc nerve endings irritated

•Spontaneous healing in 1-2 weeks

•Pigment change

•No scarring

 

Definition
second degree burn
Term
anything that blisters is what type of burn
Definition
anything that blisters is second degree
Term
skin scalded with hot water is what type of burn
Definition
second degree
Term

these are characteristics of what type of burn:

 deep partial thickness burn wound

•Involves entire epidermis and at least two thirds of dermis

•Pink to red to white (mottled), moist wound

•Less painful

•May heal without surgery; spontaneous healing is slow (3-12 weeks)

•Pigment change

•Scarring is possible

 

Definition
second degree partial thickness burn
Term
skin burn from hot grease spill or flame injury is what type of burn
Definition
second degree partial thickness
Term

these are characteristics of what type of burn:

Both layers of skin completely destroyed

•Leathery, dry, waxy eschar (eschar brown to yellow to white color)

•Hair follicles and sweat glands affected

•Painless

•Requires skin grafting to heal

•Pigment change

•Scarring will occur

 

Definition
third degree burn
Term

these are characteristic of what type of burn:

Extends through all layers of skin to involve ligaments, muscle, and bone

•Black, charred eschar

•Painless

•Usually requires amputation but can sometimes be treated with skin grafting

 

Definition
fourth degree burn
Term
true or false: as the level of CO in blood increases the level of consciouness decrease and vital signs increase
Definition
False: bothe LOC and VS decrease with increasing levels of CO poisoning
Term

these are sxs of what:

headache and dizziness to nausea, confusion, dyspnea and syncope, hypotension, seizures, and coma.

Definition
CO poisoning
Term
true or false: Co binds to hgb with a greater affinity than oxygen 
Definition
true
Term
inhalation injuries above the glottis are due to what?
Definition

Above glottis: thermal or chemical injuries.  The structures injured include the nasopharynx, oropharynx, and larynx. 

Term
inhalation injuries below the glottis are caused by what?
Definition

Below glottis: are always caused by chemical injuries

This causes impaired ciliary activity, inflammation, hypersecretion, edema, ulceration, and spasm

Term
how is CO poisoning diagnosed?
Definition

Arterial or venous carboxyhemoglobin saturation

 

–Routine ABG and pulse oximetry not useful bc give falsely normal Hgb saturation

Term

these are indicative of what type of injury:

Carbonaceous sputum

•Facial burns

•Singed nasal hairs

•Signs of hypoxemia: agitation, anxiety, stupor, cyanosis

•Rapid respiratory rate

•Nasal flaring or intercostal retractions

•Hoarse voice

•Grunting; rales or rhonchi

•Erythema or edema of oropharynx or nasopharynx

•Inability to swallow

Definition
inhalation injury
Term
Rules of 9 is useful t kae a rapid initial assesment of the extent of burn but only used to assess what type of burns?
Definition

2nd and 3rd degree burns:

 

an adult:

Head = 9%

Back, chest = 18% each

Upper extremities = 9% each

Perineal area = 1%

Lower extremities = 18% each

Total is 100%

 

A child’s head accounts for 18% because it has a large surface area.  A child’s lower extremities have a smaller surface area

Term

•The size of the patient’s entire hand represents approximately 1% of total body surface area of burn,is known as the ?

Definition

palmar method

 

The palmar method is an alternative to the Rule of Nines to determine percent total body surface area affected by a burn injury.

Term
what is the goal of fluid resuscitation in burned pts
Definition

Fluid Resuscitation

GOAL: maintain tissue perfusion and organ function while avoiding complications of inadequate or excessive fluid therapy

Term
describe the Parkland formula
Definition

–Fluid resuscitation 24 hours post-burn

–2-4cc LR x body weight (kg) x %TBSA (total body surface area)burned

–Maintain adequate urine output

Term
indications for escharotomy are:
Definition

deep circumferential trunk burn

 

circumferential extremity burn

Term

these are signs and sxs of what type of burn:

cyanosis of unburned skin on a limb,

paresthesia or pain in extremity,

progressive decrease or absence of pulse.

Definition
Circumferential extremity burn
Term

in this type of burn the chest cannot expand for adequate respiration. 

Escharotomy incisions are required to allow the chest to expand. 

Definition
deep circumferential trunk burn
Term
where are incision made in escharotomy of a deep circumferential trunk burn?
Definition

Deep circumferential trunk burns,

Escharotomy incisions are made in the bilateral anterior axillary lines. 

If the burn extends onto the abdominal wall, extend the escharotomy lines onto the abdomen and connect them by a transverse incision along the costal margin.

Term
where are incisions made in an escharotomy of a circumferential extremity burn
Definition

Circumferential extremity burns,

Escharotomy incisions are made in the mid-medial or mid-lateral aspect of the extremity.  Extend the incisions through the eschar to the subcutaneous fat.  The incisions should cross joints

Term
this is required to relieve elevated compartment pressure caused by edema beneath muscle fascia.
Definition
Fasciotomy
Term

these are causes of what?

Massive fluid resuscitation

•High-voltage electrical injury

•Delayed escharotomy

•Crush injury

Definition
elevated compartment pressure
Term

this is an enzymatic debriding ointment that contains the enzyme collagenase. 

 

Definition

santyl

 

This enzyme specifically targets collagen and digests it in necrotic tissue.  The enzyme is derived from fermentation by Clostridium histolyticum.  The enzyme does not harm normal tissue. 

Term
what are the advantages and disadvantages of Santyl?
Definition

Advantages:

•Once daily application

•If infection is present, antibiotic powder can be mixed with Santyl

•Patient may shower

 

Disadvantages:

•Contraindicated in patients with local or systemic hypersensitivity to collagenase

•Patient may shower, which can be painful due to the open wound

•Once daily application is difficult for some patients or when wounds are located on difficult body parts such as the back

 

 

Term
This is a foam pad placed onto wounds for healing.  It contains a Safetac silicone layer that is placed onto the wound.  The foam contains silver ions.  what is it?
Definition

 

MepilexAg

When wound fluid contacts the silver ions in the foam, the ions are released into the wound.  The silver causes bacterial cell wall rupture.  The silver also binds to bacterial enzymes, disrupting bacterial replication.  MepilexAg is used for 1st and 2nd degree wounds.

Term
what are the advantages and disadvantages of Mepilex Ag?
Definition

Advantages:

•Once weekly dressing change

•No pain

•Almost no contraindications

 

Disadvantages:

•Must stay dry

 

 

Term

What is this?

 It contains 2 antibiotics: silver and sulfadiazine.  _ is used for 1st degree to superficial 2nd degree wounds. 

Definition
Silvadene
Term
what does Silvadene cause? And who should use caution when usind Silvadene
Definition
Silvadene in pregnant women close to term, premature babies, or newborns up to 1 year of life because it may cause kernicterus.  Do not use Silvadene in patients with a sulfonamide allergy.
Term
what are the advantages and disadvantages of Silvadene?
Definition

Advantages:

•Antimicrobial

•Patient may shower

•Once daily application

 

Disadvantages:

•Sulfa allergy

•Patient may shower, which may be painful

•Once daily application is difficult for some patients or when wounds are located on difficult body parts such as the back

 

 

Term

what is this?

It contains 3% bismuth tribromophenate in a special petrolatum blend on a fine mesh gauze and promotes moist wound healing. 

Definition
Xeroform
Term
what is the indication of Xeroform?
Definition
It is indicated for superficial 2nd degree wounds and skin tears.
Term
what are the advantages and disadvantages of Xeroform
Definition

Advantages:

•Bacteriostatic

•Non-adherent

•Occlusive

•Protective

 

Disadvantages:

•Must stay dry

•Removal may be painful because the dressing dries out and adheres to the wound

 

 

Term

what does this describe:

For a skin graft, skin is harvested from a donor site, usually on the thigh. The skin at donor site regenerates from the hair follicles and sebaceous glands.  The donor skin contains epidermis and a portion of the dermis. 

Definition
split thickness skin graft
Term
what are the advantages and disadvantages of skin thickness graft.
Definition

Advantage: fastest method by which to achieve wound healing

Disadvantages:

•Creation of a 2nd wound

•Patient must stay in the hospital after grafting procedure

•Cosmetics: pigment change and scarring

 

 

Term
what is the tx for CO
Definition

To treat carbon monoxide poisoning, administer 100% O2 by face mask or ET tube.  Insert an ET tube if airway obstruction is imminent, indicated by hoarseness, stridor, or a diminished level of consciousness that impairs airway protective reflexes.  Treat hypotension, seizures, and coma accordingly. 

Term
what are the indications for hyperbaric oxygen to treat CO poisoning?
Definition

Indications for hyperbaric oxygen to treat carbon monoxide poisoning include:

 a history of loss of consciousness,

carboxyhemoglobin > 25%,

metabolic acidosis,

age > 50,

or cerebellar findings on neurologic exam.

Term
what do you need to use to protect skin and new skin from UV rays
Definition
sunscreen
Term
how does new skin appear
Definition
The new skin is pink; it does not contain any pigment.  Pigment returns as dark or light freckles that ascend the hair follicle.  Over time, the freckles increase in size until they coalesce
Term
because new skin is dry, what must you use.
Definition

moisturizer

 

Massaging with moisturizer cream also helps promote pigment return.  Moisturizer also relieves pruritis.

Term
what level of protection in sunscreen  must be used to protect new skin.
Definition
In order for a patient to have the best chance of full pigment return, the new skin must be protected with sunscreen SPF 30 or higher.
Term
if new skin is exposed to the sun while it is still white what will happen
Definition
The new skin will turn white and this color change is permanent
Term
how often should sunscreen be applied
Definition
Sunscreen should be applied 10 minutes prior to going outside and be reapplied every 2 hours
Term
how should scar be managed
Definition

Continuous pressure garment (CPG

•Physical therapy: aggressive to prevent loss of ROM

•Plastic surgery

Term
what does a pressure garment do to a scar
Definition
The garments fit tightly to diminish blood supply to the scar to inhibit hypertrophy.  By wearing the pressure garment, the appearance and coloration of the scar are improved. 
Term
what are teh psychosocial needs of a burn pt
Definition

Psychosocial Needs

•Abuse

•Acute Stress Disorder / Post-Traumatic Stress Disorder

•School and job re-entry

•Family support-education

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