GP Week 4 Flashcards
Exam Prep
Acne treatment - mild comedonal.
- Topical retinoid
Acne treatment - mild papular/ pustular.
- Topical retinoid + benzoyl peroxide
or - Benzoyl peroxide + topical antibiotic
Acne treatment - moderate.
Either:
1. Topical retinoid + benzoyl peroxide
or
2. Benzoyl peroxide + topical antibiotic
Acne treatment - moderate to severe.
Either:
1. Topical antibiotic + benzoyl peroxide + topical retinoid
or
2. Oral antibiotic + benzoyl peroxide + topical retinoid
Acne treatment - severe.
- Oral isotretinoin.
Alternative acne treatment - mild to moderate.
- Salicylic acid.
Alternative acne treatments for females.
- +/- hormonal treatment to standard treatment regimen
Topical corticosteroid ladder: Mild (Class I)
- Hydrocortisone 0.5 - 1%
- Hydrocortisone acetate 0.5 - 1%
- Desonide 0.05%
Topical corticosteroid ladder: Moderate (Class II)
- Betamethasone
- Triamcinolone
- Clobetasone
- Methylprednisolone
Topical corticosteroid ladder: Strong (Class III)
- Bethamethasone D
- Betamethasone V
- Triamcinolone
- Momethasone
Topical corticosteroid ladder: Very Strong (Class IV)
- Betamethasone D (ointment)
2. Halcinonide
Bleach bath regimen for atopic dermatitis.
- 45 ml household bleach, 4% sodium hypochlorite
- Bath oil (2-3 full caps)
- 40 L lukewarm water
- Bath for 10 minutes and gently soak crusts off
- Apply topical steroids before moisturisers
Second line treatment for atopic dermatitis.
- Topical calcineurin inhibitors
2. (risk of immunosupression)
DDx for atopic dermatitis (atopic eczema).
- Contact dermatitis
- Impetigo
- Urticaria
- Scabies
- Psoriasis
- Seborrhoeic dermatitis
The skin barrier hypothesis of atopic dermatitis.
- Filaggrin gene mutation.
- Filaggrin is a protein needed to maintain integrity of epidermis by binding keratinocytes.
- Causes skin dysfunction and water loss from the skin.
The immunological hypothesis of atopic dermatitis.
- Imbalance of T-helper cells with predominance of Th2 cells
- Results in an increase of IgE through a pathway involving activation of interleukins.
The 8 clues to malignant skin lesion to support chaos.
- Grey or Blue structures.
- Eccentric structureless area
- Thick lines (reticular or branched)
- Black dots or clods (peripheral)
- Lines radial or pseudopods (segmental)
- White lines
- Polymorphous vessels
- Lines Parallel, ridges (palms and soles) or chaotic (nails)
Risk factors for melanoma.
- History of previous melanoma.
- 50 + moles
- Family history of melanoma.
- History of many sunburns.
- Sun sensitive skin
- Increasing age.
- Male sex.
Treatment of non- melanoma skin lesion: Surgery.
- Simple ellipse with primary closure under local.
- SCC - 4mm margin
- BCC - 3mm margin
Treatment of non- melanoma skin lesion: Cryotherapy
- Primary BCC away from head and neck
- Solar keratosis 5 x 10 seconds
- Bowenoid keratosis 3mm margin 30 seconds single freeze
Treatment of non- melanoma skin lesion: Curettage
1, Primary BBC deemed suitable
Treatment of non- melanoma skin lesion: Imiquimod
- BCC
2. Solar keratosis
Major risk factors for osteoporotic fractures: Modifiable
- Low BMD
- Low body weight
- Oral glucocorticoid therapy
- Increased risk of falls
- Cigarette smoking
Major risk factors for osteoporotic fractures: Non-modifiable
- Age > 65 years
- Female sex
- Early menopause
- Amenorrhoea > 6-12 months
- Primary hypogonadism
- Previous fragility fracture
- Family history of fragility fracture
- Slim build
Other significant (not major) risk factors for osteoporotic fractures.
- Excessive alcohol intake
- Sedentary lifestyle
- Prolonged immobilisation
- Inadequate calcium intake
- Vitamin D deficiency
- High bone turnover
- Secondary causes of osteoporosis.
Garvin Institute fracture risk calculator guiding factors.
- Age 60 - 96 years
- Gender
- Weight
- BMD T score or BMD
- Minimal trauma fracture since age 50 years
- Falls in the last six months.
Common medication classes associated with increased falls.
- Anticholinergics.
- Antidepressants.
- Antihypertensives.
- Antipsychotics.
- Benzodiazepines.
Common medications that may weaken bones.
- Glucocorticoids.
- Thyroid hormones.
- Heparin.
- Antiepileptics
- Gonadotrophin- releasing hormone agonists.
- Aromatase inhibitors.
- Glitazones.