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GP > Dermatology > Flashcards

Dermatology Flashcards

1
Q

Centor criteria

A 
OLD- age <14 
Cervical lymphadenopathy
Absence of cough
Fever >38 C
Exudate on tonsils
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2
Q

Criteria for antibiotics in sore throat

A

3/4 Centor criteria

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3
Q

Tonsillitis antibiotic of choice

A

Pen V 10 days

or erythromycin/clarithromycin 5days

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4
Q

macule

A

flat

impalpable lesion

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5
Q

papule

A

small <1cm

raised lesion

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6
Q

nodule

A

big >1cm

raised leaion

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7
Q

plaque

A

flat raised lesion

usually formed by papules fusing together

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8
Q

vesicle

A

fluid filled lesion

<1cm

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9
Q

bulla

A

fluid filled lesion

>1 cm

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10
Q

keratosis

A

scaling

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11
Q

crust

A

dried series exudates

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12
Q

erythema

A

red

Blanches on diascopy

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13
Q

purpura

A

red

non branching on diascopy

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14
Q

leukoderma

A

white

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15
Q

Koebner phenomenon

A

a linear eruption arising at site of trauma

seen in psoriasis

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16
Q

Lichenification

A

well defined roughening of skin with accentuation of skin markings

17
Q

Name: well defined roughening of skin with accentuation of skin markings

A

Lichenification

18
Q

Excoriation

A

loss of epidermis following trauma

19
Q

Wheal is seen in

A

urticaria

20
Q

target lesions seen in

A

erythema multiforme

21
Q

Keratinocytes: function

A

produce keratin as a productive barrier

22
Q

Langerhans’ cells: function

A

present antigens and activate T-lynohocytes for immune protection

23
Q

Melanocytes: function

A

produce melanin -> pigment to the skin and protects the cell nuclei from UV radiation-induced DNA damage

24
Q

Merkel cells: function

A

contain specialised nerve endings for sensation

25
Q

Epidermis layers

A

basal cell layer- actively dividing cells
prickle cell layer- differentiating cells
granular cell layer- cells loose nuclei and contain granules of keratohyaline. Secrete lipid into intracellular spaces
horny layer- keratin layer

26
Q

Antihistamine: example

A

chlorphenamine

27
Q

Uraticaria, angiodema and anaphylaxis management

A

antihistamines (chlorphenamine)
corticosteroids- severe uraticaria and angioedema
adrenaline for anaphylaxis

28
Q

Fungal infection management

A 
topical antifungals (terbinafine cream)
oral antifungals (itraconazole) 
avoid CS -> tinea incognito
29
Q

Atopic eczema management

A

avoidance of aggrivating factors
topical steroids, or
topical immunomoduladors (tacrolimus)
antihistamines

30
Q

Acne vulgaris management

A

trigger avoidance (at least 6wks)
mild- benzoul peroxide, topical antibiotics and retinoids
mod-sev- oral abx and antiadrogens in females
sev- oral retinoids

GP (3 decks)

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