Skin: Wounds, Burns, Infections

Question 0

Appropriate margin for wide excision of melanoma with the following depth of the lesion:

1 mm
1-4 mm
>4 mm

Answer 0

1-cm
2-cm
2 to 3-cm margin of exision

Question 1

Innervates the intrinsic muscles of the hand?

Answer 1

ulnar nerve

Question 2

Skin condition associated with inflammatory bowel disease

Answer 2

pyoderma gangrenosum

Question 3

Marjolin ulcer

Answer 3

SCC associated with thermal injury

Question 4

Complications of silver nitrate

Answer 4

Electrolyte abnormalities: hyponatremia, hypokalemia, hypocalcemia, hypochloremia and methemoglobinemia

Question 5

Complications of silver sulfadiazine

Answer 5

Neutropenia

Question 6

Complications of mafenide acetate

Answer 6

Metabolic acidosis

Question 7

Free man topical agents used to treat burns

Answer 7

Silver nitrate
Silver sulfadiazine
Mafenide acetate

Question 8

Define secondary intention

Answer 8

Leaving the wound open without active intent to seal. Heals by reepithelialization

Question 9

Tertiary intention

Answer 9

Delayed primary closure. Contaminated wound treated with repeated therapy until infection is controlled then closed with suturing, skin grafts, flap

Question 10

What is a composite tissue graft?

Answer 10

Contains tissue in addition to the epidermis and dermis

Question 11

When is lymph node dissection indicated in melanoma?

Answer 11

Positive sentinel lymph node

Clinically positive lymph nodes

Question 12

When is a sentinel lymph node biopsy performed for melanoma?

Answer 12

For lesions between 1 and 4 mm in thickness.

Greater than 4 mm, lymph nodes would be palpable and dissection would be completed.

Question 13

which type of wounds should be left open?

Answer 13

Wounds that are dirty or contaminated, dramatically induced by puncture, gunshot, crush injury, or that are older than six hours

Question 14

Which organisms do third-generation cephalosporins provide coverage against?

Answer 14

Most gram-negative bacteria, Poor activity against anaerobic bacteria

Question 15

Which and about it’s provide anaerobic coverage?

Answer 15

Clindamycin or metronidazole

Question 16

Most common organism in patients with nosocomial bacteremia?

Answer 16

Coagulase – negative Staphylococcus

Question 17

Parkland formula

Answer 17

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

Question 18

Common location for ischemic ulcers?

Answer 18

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

Question 19

Characteristics of diabetic ulcers?

Answer 19

Associated with trauma or pressure secondary to sensory neuropathy.
Occur on the plantar surface of the foot