Derm/Minor surgery Flashcards Preview

Emma's NPLEX II Dx > Derm/Minor surgery > Flashcards

Flashcards in Derm/Minor surgery Deck (31):
1

Blue macules among the pubic hair is likely what infection?

Lice (pediculosis)

2

Descibe the clinical signs and symptoms of measles

i.) Cough
ii.) Coryza
iii.) Conjuctivitis
iv.) Koplik spots
v.) Descending maculopapular rash

3

What are the main symptoms of mumps?

i.) Parotitis
ii.) Orchitis
iii.) Aseptic Meningitis

4

Brown-Pearly papule typically on the face with telangiectasia

Basal Cell Carcinoma

5

Orange peel lesion from a superficial lymphatic infection

Erysipelas

6

Tinea Versicolor is caused by what microorganism?

Pityrosporum orbiculare (a yeast).

Note: it is not contagious!

7

Describe how gas gangrene forms

1.) Clostridium perfringens infection
2.) Lecithinase (alpha toxin) produced
3.) Mass necrosis of peripheral tissue
4.) Degradative enzymes ferment muscle sugars and produce gas crepitations leading to gas gangrene

8

Cat Scratch Fever is caused by what bacteria?

Bartonella henselae (transmitted by cat bites and potentially by licking)

9

Describe the progression of cutaneous anthrax signs and symptoms

1.) Incubation of 2-5 days
2.) Erythematous papules that become vesicular.
3.) Lesions ulcerate over 7-10 days
4.) Black eschar (necrosis) develops around an edematous base forms.
5.) Usually resolves but can develop into fatal sepsis

10

What HPV strains are associated with common warts?

1, 2

11

How do you differentiate a mealses rash from rubella?

Rubella = truncal

Measles = starts on head and travels in a descending pattern

12

Erythematic papules arranged in a circle. This skin lesion arises from leukocytosis and subsequent WBC clumping in the superficial blood vessels of the dorsum of the hands and feet

Granuloma annulare

13

Urticaria that presents as small papules during stress, exercise, or overheating

Cholinergic urticaria

14

In what patient is guttate psoriasis most frequently present in?

Young adults who have recently had a bacterial infection- such as an URI (strep throat).

The lesions typically present as small erythematic macules on the trunk and upper proximal extremities; treated with mild steroids (hydrocortisone) & sun exposure

15

What age group is most likely to experience pemphigus vulgaris?

Middle-aged and older patients

16

This skin lesion is pruritic, polygonal, purple papules with reticular white lines on the surface (Wickham striae)

Lichen Planus

Polygonal means it has straight edges

17

What subtype of melanoma is the most aggressive?

Nodular Melanoma

18

What is the most common causative agent for impetigo?


Streptococcus pyogenes or Staph aureus

19

What subtype of melanoma most commonly occurs in darker-skinned people?

Acral Melanoma (typically occurs on palms & soles or nail beds)

Aggressive version of melanoma

20

What is Koebner's phenomenon?

Skin lesions which appear at the site of injury (or scratching)

21

Well-differentiated squamous cell carcinoma that develops rapidly and then regresses spontaneously

Keratoacanthoma

22

A common type of urticaria in which the skin becomes inflamed and raised when scratched or rubbed

Dermatographia

23

What do tinea versicolor lesions look like?

Macules that often coalesce and may be white, pink, salmon, red, tan, or even brown. The lesions may scale and there may be mild pruritis.

The spots become more noticeable as the skin tans because the yeast (Pityrosporum orbiculare) prevents the underlying skin from tanning.

24

What allele variant is psoriasis associated with?

HLA C

25

Benign skin growth that originates from keratinocytes. These lesions are found on sun-exposed areas of older people

Seborrheic keratosis

26

This topical medication is used in people with psoriasis and eczema that is non-responsive to less potent corticosteroids such as hydrocortisone

Mometasone

Dexamethasone is more potent that mometasone

27

Isotretinoin
Clinical Use
ii.) Mechanism

(Accutane)
i.) Clinical Use = Severe Nodular Acne
ii.) Mechanism
a.) Synthetic High Dose Vitamin A that reduces sebum production and regulates epithelial cell growth

28

Isotretinoin
iii.) Side Effects
iv.) Contraindications

iii.) Side Effects
a.) Palpitations & Tachycardia
b.) Purpura
c.) Crohn's & UC
d.) Alopecia, Decreased Night Vision, DDD, arthralgia, keloids, dry eyes, and dry skin all persist even after discontinuation
iv.) Contraindications
a.) Pregnancy (teratogenic)
b.) Smoking

29

Isotretinoin
v.) Interactions

v.) Interactions
a.) Reduces Contraceptive effectiveness

30

This acne treatment is teratogenic

Isotretinoin

31

This medication may have side effects that persist even after discontinuation:
alopecia, night blindness, IBD, keloids, and dry eyes

Isotretinoid