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FINALS - DERM > Acne > Flashcards

Acne Flashcards

1
Q

what causes comedomes in acne

A

mild acne = dilated sebaceous follicles get plugged with keratin

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2
Q

what can inflammation in acne cause

A

moderate acne = papules (solid and inflamed) + pustules ==> nodules + cysts

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3
Q

what type of scarring can occur in acne

A

severe acne = ice-pick and hypertrophic

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4
Q

what drug can cause acne and what is usually seen

A

steroids ==> monomorphic acne

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5
Q

what is acne fulimans

A

severe + systemic upset –> hospital

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6
Q

acne fulminans mx

A

oral steroids

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7
Q

what control activity of sebacous gland

A

androgens

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8
Q

what bacteria colonates hair follicles in acne

A

propionibacterium acnes (gram +ive)

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9
Q

what % of teenagers get acne

A

80-90%

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10
Q

1st line mx acne

A

topical retinoids or benzyl peroxide

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11
Q

2nd line acne mx

A

COMBINED: topical retinoids or benzyl peroxide or topical antibiotic

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12
Q

what oral antibiotics can be prescirbed for acne

A

tetracyclines eg lymecycline, oxytetracycline, doxycycline

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13
Q

who should not be prescibed abx for acne

A

tetracuclines avoided in pregnancy and kids <12

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14
Q

acne abx in pregnancy

A

erythromycin

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15
Q

how long should an oral abx for acne be prescribed

A

3 months

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16
Q

what should always be co-prescribed with oral abx for acne and why

A

topical retinoid or benzyl peroxide to stop abx resistance

17
Q

what is a common complication of long term antibiotic use for acne + what mx should be given

A

gram -ive folliculitis –> oral trimethroprim

18
Q

what is an alternative oral mx to abx for acne in women + how long is it prescribed

A

COCP (+ topical agents) // use for 3 months // dianette

19
Q

last line mx acne

A

oral isotretinoin - after specialist review

20
Q

when are retinoids contraindicated

A

pregnancy

21
Q

what are retinoids

A

vit A

22
Q

SE retinoids

A

tetragenic // dry lips, mouth, skin // low mood // raised trigylcerides // hair thinning // intracranial hypertension // photosensitivity

23
Q

most common SE retinoids

A

dry lips/ mouth (eyes and skin)

FINALS - DERM (11 decks)

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