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Medical Derm Revision > Buzz Surgery/Misc > Flashcards

Buzz Surgery/Misc Flashcards

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USMLE® Step 1 flashcards Dermatology Board Prep flashcards
1
Q

Least inflammatory non-absorbable suture

A

Polypropylene (prolene)

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2
Q

Most inflammatory non-absorbable suture

A

Silk

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3
Q

Longest lasting absorbable suture for 180 days

A

PDS (polydioxanone)

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4
Q

Graft with less contraction

A

Full-thickness skin graft

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5
Q

Graft with less necrosis due to decr vascular requirement

A

Split-thickness skin graft

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6
Q

Local anesthetic with shortest duration

A

Procaine

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7
Q

Local anesthetic with longest duration

A

Bupivicaine (etidocaine next)

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8
Q

Derivation of muscles of mastication

A

First branchial arch

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9
Q

Derivation of facial expression muscles

A

Second branchial arch

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10
Q

Muscle needed to pull corners of mouth downward

A

Depressor anguli oris (DAO)

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11
Q

Muscle needed to dilate nostrils

A

Levator labii superioris alaeque nasi

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12
Q

Sensory innervation to root of nose, lateral nasal sidewalls

A

Infratrochlear nerve

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13
Q

Sensory innervation to nasal dorsum and tip

A

External nasal branch of anterior ethmoidal nerve

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14
Q

Sensory innervation to tympanic membrane

A

Auriculotemporal nerve

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15
Q

Internal and external carotid artery (ICA/ECA) anastomosis

A

Dorsal nasal artery (ICA) with angular artery (ECA)

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16
Q

Type of excision best over convex surface

A

S-plasty

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17
Q

Type of excision for reducing length of scar

A

M-plasty

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18
Q

Process by which synthetic materials (vicryl, dexon) absorbed

A

Hydrolysis

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19
Q

Process by which natural material (cat gut, silk) absorbed

A

Proteolysis

20
Q

Antiseptic with flammable property

A

Isopropyl alcohol

21
Q

Antiseptic inactivated by blood/sputum, ± contact dermatitis

A

Povidone-iodine

22
Q

Antiseptic with neurotoxic effects (teratogenic as well)

A

Hexachlorophene

23
Q

Antiseptic with ototoxicity and ocular irritation

A

Chlorhexidine

24
Q

Scar strength at 2, 3, 6 weeks and 1 year

A

5%, 15%, 40%, 80%

25
Q

Temperature needed for melanocyte destruction

A

−5 degC

26
Q

Temperature to destroy skin cancer

A

−50 degC (vs. −25 degC for benign lesion)

27
Q

Temperature for destruction of keratinocyte

A

−25 degC

28
Q

Maximum safe dose of lidocaine for tumescent anesthesia

A

55 mg/kg

29
Q

B cell lymphoma, leg type

A

More aggressive with poorer prognosis than B cell lymphomas of head/neck

30
Q

Nodular amyloidosis

A

AL

31
Q

Macular and lichen amyloidosis

A

Keratin-derived

32
Q

Scleromyxedema

A

IgG-lambda

33
Q

Psoriasis

A

incr K6/16, incr involucrin, incr ornithine decarboxylase

34
Q

Differentiate acquired angioedema vs. hereditary angioedema

A

Check C4 level

35
Q

Wolff-Chaikoff effect

A

Side effect from potassium iodide

36
Q

Hereditary angioedema

A

Type I: decr C2/C4, decr functional C1inh, Type II: normal C2/C4, decr functional C1inh

37
Q

Proteins to maintain HPV replication in basal layer

A

E1 and E2 proteins

38
Q

Treatment for erythema nodosum leprosum

A

Thalidomide

39
Q

Most common location for superficial spreading melanoma

A

Back (men), leg (women)

40
Q

Autoantibody with CCB-induced LE

A

Anti-SSA (anti-Ro)

41
Q

Autoantibody with procainamide-induced LE

A

Anti-histone

42
Q

Most common cyst on lateral neck

A

Branchial cleft cyst

43
Q

Most common cyst on midline of anterior neck

A

Thyroglossal duct cyst

44
Q

Treatment for confluent and reticulated papillomatosis of Gougerot and Carteaud

A

Minocycline x 6–8 weeks

45
Q

Drug-induced elastosis perforans serpiginosa (EPS)

A

Penicillamine

Medical Derm Revision (51 decks)

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