dermatology

Question 1

management of psoriasis

Answer 1

1st : potent corticosteroid plus vitamin D analogue

Question 2

list some gram negative bacteria

Answer 2

pseudonomas aerginosa
klebsiella pneumoniae
e. coli
bacteroides fragilis

Question 3

what is a gram postiitve cocci that grows in chains?

Answer 3

strep

Question 4

what is a gram positive cocci that grows in clusters?

Answer 4

staphylococci

Question 5

what does metronidazole treat

Answer 5

anaerobes and some protozoans

Question 6

1st line for cellulitis

Answer 6

flucloxacillin

Question 7

1st line for mammal bites

Answer 7

co amoxiclav

Question 8

what antibiotics are effective against MRSA?

Answer 8

IV vancomycin

doxycycline (used for milder infections)

Question 9

necrotising fasciitis

Answer 9

features: intense pain over site, erythema, USS shows fluid collections
management: URGENT DEBRIDEMENT

Question 10

two commonest bacteria implicated in skin infections?

Answer 10

• staphylococcus aureus

- streptococcus pyogenes (group a strep)

Question 11

how often should one apply emolients?

Answer 11

at least 3x daily

Question 12

what is an alternative to steroids in eczema

Answer 12

calcineurin inhibitors eg tacrolimus

Question 13

what advice can you give to someone with eczema

Answer 13

use lotions instead of soaps
apply emolients to the skin >3x daily
kids should use 250g a week, so 500g tub every two weeks
apply emolients at different time to other topicals

Question 14

what is the mildest topical corticosteroid?

Answer 14

hydrocortisone 1%

Question 15

who commonly gets bullous pemphigoid

Answer 15

the elderly

Question 16

features of a BCC

Answer 16

pearly centre
telangiectasia
slow growing
may later form a crater like centre
usually sun exposed areas

Question 17

what would be a good tmt option for someone with plaque psoriasis

Answer 17

dobovet gel OD for 8 weeks (vitamin d analogue with moderate steroid) plus emollient of choice

Question 18

how long should a patient treat psoriatic plaque flares for ?

Answer 18

• until the plaque is no longer palpable

- review within 4-6 weeks