Derm

Question 1

What are the 4 layers of the epidermis?

Answer 1

Keratin layer
Granular layer
Prickle cell layer
Basal cell layer

Question 2

Management of ringworm

Answer 2

Local - topical clotrimazole
Extensive
(1) oral terbinafine
(2) oral itraconazole

Question 3

What is pityriasis vesicolour?

Answer 3

a.k.a tinea vesicolour

Fungal infection - Malassezia furfur

Question 4

Presentation of pityriasis versicolour?

Answer 4

Hypo or hyper-pigmented coalescing scaly maculae on trunk or upper arms

Question 5

Management of cellulitis

Answer 5

If severely ill give vancomycin for MRSA cover

if s. aureus = fluclox if group A strep = penicillin

Question 6

Management of Lyme disease

Answer 6

Doxycyline or amoxicillin

Question 7

What are the 2 types of necrotising fascitis?

Answer 7

Type 1 = mixed anaerobes + aerobes (post-op)

Type 2 = Group A beta-haemolytic strep (pyogenes)

Question 8

Management of folliculitis (infected hair follicle)

Answer 8

Benzyl peroxide

Question 9

Management of scabies

Answer 9

(1) Permethrin (apply top to toe for 8 hrs twice - one week apart)
(2) Malathion

Question 10

Mx of peripartum exposure to chicken pox

Answer 10

Give VZIG

Question 11

Who is the shingles vaccine offered to?

Answer 11

All aged 70-79

Question 12

Presentation of erythema multiforme

Answer 12

Erythematous target lesion

(1) back of hands + feet
(2) spreads to tors