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Dermatology > Misc > Flashcards

Misc Flashcards

1
Q

What is erythropoietic protoporphyria?

A

Discomfort, itch or tingling in sunlight. Most commonly in young children.

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2
Q

What causes erythropoietic protoporphyria?

A

A build up of protoporphyrin IX due to a lack of ferrochelatase enzyme

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3
Q

What is porphyria cutanea tarda?

A

Blistering, scarring and milia formation of dorsal arms and forearms and hypertrichosis ( excess hair growth).

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4
Q

What causes porphyria cutanea tarda?

A

Can be associated with alcoholics.

More commonly a deficiency of of uroporphyrinogen enzyme

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5
Q

What is a first degree burn?

A

reaches the epidermis

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6
Q

What is a second degree burn?

A

A burn which reaches the epidermis and the dermis

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7
Q

What is a third degree burn?

A

reaches beyond the dermis

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8
Q

Give examples of drugs which can flare psoriasis

A

Lithium and beta blockers

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9
Q

What other parts of the body can psoriasis affect?

A

Joints, nails, skin, mucosal surfaces

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10
Q

True or False?

Anxiety, depression and alcoholism has a link with psoriasis.

A

True

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11
Q

What is onycholysis?

A

separation of nail from nail bed

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12
Q

What is the difference in an erythema and a purpura?

A

Erythema will blanchE

Purpura will not.

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13
Q

What is a macule?

A

Flat. 1cm then a patch

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14
Q

What is a papule?

A

0.5cm then a nodule

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15
Q

What is a vesicle?

A
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16
Q

What is crusting?

A

Dried exudate

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17
Q

What is an ulcer?

A

Deep break into the dermis

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18
Q

What is a plaque?

A

raised edge and a flat surface

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19
Q

What is the name given to a birth mark?

A

Congenital nevus

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20
Q

What does a “pearly rim” suggest?

A

Basal cell carcinoma

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21
Q

What can a basal cell papilloma be confused with?

A

A malignant melanoma

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22
Q

What are the different types of configuration of skin lesions?

A

Discrete, grouped, confluent, annular

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23
Q

What would you give to treat shingles?

A

Aciclovir and abx lotion

24
Q

What are umbilicated papules?

A

Depressed in the centre

25
How are steroids prescribed?
Very potent then on sliding scale downwards
26
Give an example of a very potent steroid
Dermovate
27
What is a potent steroid?
Betnovate
28
What is a macule?
Flat. 1cm then a patch
29
What is a papule?
0.5cm then a nodule
30
What is a vesicle?
Fluid filled then a bulla
31
What is crusting?
Dried exudate
32
What is an ulcer?
Deep break into the dermis
33
What is a plaque?
raised edge and a flat surface
34
What is the name given to a birth mark?
Congenital nevus
35
What does a "pearly rim" suggest?
Basal cell carcinoma
36
What can a basal cell papilloma be confused with?
A malignant melanoma
37
What are the different types of configuration?
Discrete, grouped, confluent, annular
38
What would you give to treat shingles?
Aciclovir and abx lotion
39
What are umbilicated papules?
Depressed in the centre
40
How are steroids prescribed?
Very potent then on sliding scale downwards
41
Give an example of a very potent steroid
Dermovate
42
What is a potent steroid?
Betnovate
43
What is trimovate?
A moderately potent combination which includes an antibacterial
44
What is the maximum length of time a potent steroid be used for?
Maximum 14 days
45
How long should be left between applying an emollient and a steroid?
20 minutes
46
What are some side effects of topical steroids?
``` Thinning of the skin (atrophy) Bruising (ecchymosis) Stretch marks (striae distensae) Glaucoma Acne ```
47
What does indurated mean?
Hardened
48
What is the definition of cellulitis?
Infection associated with deeper layer of the dermis. Not associated with necrosis.
49
What can patients put in their bath to dry weeping skin?
Potassium permanganate
50
When would you use a Woods light?
Some organisms which cause scalp ringworm produce green fluorescence. Some pigmentary disorders are more clearly visible in the light espec. tuberous sclerosis and the café-au-lait marks of neurofibromatosis.
51
What chemical is added to scrapings in order to see cells more clearly?
Potassium Hydroxide
52
What is the difference in erysipelas and cellulitis?
Erysipelas is an infection contained superficially while cellulitis stretches to the dermis
53
What bacteria is cellulitis commonly caused by?
Strep pyogenes
54
What bacteria causes cellulitis is children?
H influenza
55
What antibiotic would you prescribe for normal cellulitis?
Penicillin or erythromycin if allergic
56
What is the 1st line treatment for rosacea?
Metronidazole gel

Dermatology (19 decks)

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