Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Skin Muscle and Bone > Intro to Dermatology > Flashcards

Intro to Dermatology Flashcards

1
Q

What is the correct order of history and physical in dermatology?

A

Physical first, then history

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Elements of a derm history

A
  • Onset
  • Pattern of spread
  • Sx
  • Tx
  • Contacts
  • Meds
  • Family Hx
  • Work and hobby contactants
  • Travel/exposures
  • Sexual Hx
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Steps to physical exam

A
  • type/morphology of lesion
  • color, consistency, texture, surface changes
  • individual lesion configuration
  • distribution
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Things to examine together:

A
  • Scalp, hair, nails and teeth

- Hands and feet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What differentiates dermal vs epidermal lesions?

A 
Epidermal:
- Sharply defined border
- Surface change
- Scaling
Dermal:
- Smooth appearance
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does “Koebner phenomenon” refer to?

A

Appearance of lesions along an area of trauma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Papulosquamous = ?

A
  • Distinct papules or plaques
  • Scaling
  • Primarily epidermal features
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Eczematous = ?

A
  • Irregular plaques
  • Oozing and crusting
  • Lots of dermal activity
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is “honey colored crust” suggestive of?

A

Impetigo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Auspitz sign

A

Pinpoint bleeding when scales are removed from psoriatic plaques/warts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Gottron sign

A

Pink or violaceous macular or papular erythema of hand, knee, elbow or ankle joints with dermatomyositis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Hair collar

A

Ring of hair around a congenital lesion such as a meningocele

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Nikolsky sign

A

Lateral pressure results in sloughing of skin in blistering disorders (e.g., SJS)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Oil drop sign

A

Distal yellowing of nail beds due to psoriatic disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Ugly duckling sign

A

Pigmented lesion that stands out from surrounding lesion, indicative of melanoma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What do you look for in a Tzanck smear that’s indicative of herpes?

A

Giant multi-nucleated cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Impetigo vs. cellulitis

A

Epidermal vs. Dermal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Bullous impetigo

A

Localized staph scalded skin reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Most common cause of bullous impetigo

A

S. aureus phage group II

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What causes cleavage of desmoglein in bullous impetigo?

A

Exfoliative Toxin- A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Important clinical signs of necrotizing fasciitis

A
  • Gas in tissue
  • Cutaneous anesthesia
  • Bullae
  • Ecchymosis that may precede necrosis
22
Q

What are the hallmarks of a tinea infection?

A
  • Round
  • Accentuated border
  • Scale
23
Q

What does “spaghetti and meatballs” suggest

A

Tinea versicolor infection

24
Q

What does grouped vesicles on an erythematous base indicate?

A

Herpes simplex

25
Q

What should you look for in the absence of vesicles with herpes infections?

A

Stellate, cribriform appearance

26
Q

What is Hutchinson’s sign?

A

Zoster involvement on the tip of the nose. Usually indicates that the eye is involved as well.

27
Q

Difference in presentation: smallpox vs. chicken pox

A
  • Smallpox vesicles all appear at the same time and progress together
  • Chicken pox lesions appear at different times, so some will be new and some will be advanced
28
Q

“Hot tub folliculitis” bug

A

Pseudomonas

29
Q

Majocchi’s granuloma treatment

A

Oral terbinafine 250 mg QD for 6 - 12 weeks

30
Q

The default assumption with any SSTI should be that it is?

A

Staph or strep.

31
Q

What often happens with OTC topical antibiotics?

A
  • resistance (s. aureus w/in 48 hrs)

- contact dermatitis

32
Q

Silvadene should be avoided in patients with?

A
  • sulfa allergies (silvadene = silver sulfadiazine cream)
  • pregnant patients
  • newborns
33
Q

1st line tx for MSSA and strep impetigo?

A
  • cephalexin 250 mg qid x 7d, OR
  • dicloxicillin 250 mg quid x 7d
  • usually used with mupirocin as well
34
Q

1st line management for outpatient MrSA

A
  • TMP-SMX DS (1 po bid x 7d?)

- Doxycycline

35
Q

1st line Tx for pseudomonas folliculitis (hot tub folliculitis):

A
  • Cipro 500 mg bid x 7-14d

- will resolve on its own without Tx

36
Q

True or false: OTC fungal drugs are effective for hair and nail fungal infections

A

False: good for skin and SSTI’s but not hair or nails.

37
Q

Triazoles have (2 things):

A
  • longer half life that ketoconazole

- less hormonal inhibition

38
Q

1st line Tx for tinea capitis

A

Griseofulvin (Grifulvin, Gris-peg)

39
Q

When should you NOT do arthrocentesis?

A
  • cellulitis (high risk of inoculating the sterile joint with bacteria infecting the dermis)
  • pts on anticoagulants
  • prosthetic joint
40
Q

Facts about synovial fluid

A
  • similar to plasma
  • hyaluronic acid
  • no clotting factors
  • acellular
  • a semi-liquid connective tissue
41
Q

Most common organism in a septic joint

A

S. aureus

42
Q

True or false: a negative gram stain can be used to rule out infection of a joint.

A

False

43
Q

True or false: a positive gram stain is not necessarily diagnostic of infection

A

False

44
Q

What are rapidly progressive monoarticular Sx most indicative of?

A

Septic joint

45
Q

Collection of pus with surrounding granulation

A

Abscess

46
Q

Superficial form of cellulitis

A

Erysipelas

47
Q

Presents with bright red spots that form smooth, hot plaques

A

Erysipelas

48
Q

Red, hot, edematous, shiny plaque at port of entry

A

Cellulitis

49
Q

Presents with sharply marginated tan or pink patches. Bacteria will glow red under Woods lamp.

A

Erythrasma

50
Q

Cornybacterium minutissimum

A

Erythrasma

51
Q

An abscess in the eccrine sweat glands or fat globules on fingertips

A

Felon

Skin Muscle and Bone (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions