Skin: Wounds, Burns, Infections Flashcards
Appropriate margin for wide excision of melanoma with the following depth of the lesion:
1 mm
1-4 mm
>4 mm
1-cm
2-cm
2 to 3-cm margin of exision
Innervates the intrinsic muscles of the hand?
ulnar nerve
Skin condition associated with inflammatory bowel disease
pyoderma gangrenosum
Marjolin ulcer
SCC associated with thermal injury
Complications of silver nitrate
Electrolyte abnormalities: hyponatremia, hypokalemia, hypocalcemia, hypochloremia and methemoglobinemia
Complications of silver sulfadiazine
Neutropenia
Complications of mafenide acetate
Metabolic acidosis
Free man topical agents used to treat burns
Silver nitrate
Silver sulfadiazine
Mafenide acetate
Define secondary intention
Leaving the wound open without active intent to seal. Heals by reepithelialization
Tertiary intention
Delayed primary closure. Contaminated wound treated with repeated therapy until infection is controlled then closed with suturing, skin grafts, flap
What is a composite tissue graft?
Contains tissue in addition to the epidermis and dermis
When is lymph node dissection indicated in melanoma?
Positive sentinel lymph node
Clinically positive lymph nodes
When is a sentinel lymph node biopsy performed for melanoma?
For lesions between 1 and 4 mm in thickness.
Greater than 4 mm, lymph nodes would be palpable and dissection would be completed.
which type of wounds should be left open?
Wounds that are dirty or contaminated, dramatically induced by puncture, gunshot, crush injury, or that are older than six hours
Which organisms do third-generation cephalosporins provide coverage against?
Most gram-negative bacteria, Poor activity against anaerobic bacteria
Which and about it’s provide anaerobic coverage?
Clindamycin or metronidazole
Most common organism in patients with nosocomial bacteremia?
Coagulase – negative Staphylococcus
Parkland formula
4 mL of lactated ringer per kilogram for each percent of total body surface area burn over the first 24 hours
One half of the amount given in the first 8 hours, the remaining half over the next 16
Common location for ischemic ulcers?
Dorsum of the fourth or the lateral first or fifth toes.
Ischemic ulcers are often associated with other symptoms of severe for referral vascular disease such as rest pain
Characteristics of diabetic ulcers?
Associated with trauma or pressure secondary to sensory neuropathy.
Occur on the plantar surface of the foot
