Office Procedures in Dermatology~ Dr. Norman – Flashcards
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Dermatographism ( write on skin and letters pop up)
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Which of the following is where you cause a hive like reaction when you write on the skin? Dermatographism Diascopy Hair Pull Darier's Sign Nikolsky's Sign
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is a test for blanchability performed by applying pressure with a finger or glass slide and observing color changes Dermatographism Diascopy Hair Pull Darier's Sign Nikolsky's Sign
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Hair Pull
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by grabbing up to 20 hairs on the patients head and pulling, you can determine roughly how many hairs are in the telogen state Dermatographism Diascopy Hair Pull Darier's Sign Nikolsky's Sign
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where there are more mast cells at the surface of the skin so when pressed: hive like reactions erupt
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What is cutaneous mastocytosis and what is urticaria pigementosum?
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Darier's Sign********* If you're *trying to diagnose urticaria Pigmentosa*, and you rub to produce a wheal, sign? a. Darier's Sign
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This test is positive when you rub your patients skin and a brown lesion of urticaria appears and is palpable. Dermatographism Diascopy Hair Pull Darier's Sign Nikolsky's Sign
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Nikolsky's Sign
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When you dislodge the epidermis by the lateral finger with pressure near the lesion. (essentially the blister pops, because it is no longer attached to the epidermis) Dermatographism Diascopy Hair Pull Darier's Sign Nikolsky's Sign
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Staph Aureus and nevi
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Which of the following cannot be determined with Wood's Lamp? Nevi Vitiligo Erthrasma Staph Aureus Fluorescent Tinea Porphyria Cutanea Tarda
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wood's lamp
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Vitiligo - in dermatology can be diagnosed with what device? -Image picture?
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wood's lamp
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Fluorescent Tinea - In dermatology, what can you diagnose this with? -image picture?
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-due to Corynebacterium minutissiumun, where skin areas rub together (axillae and groin) -coral red fluorescence
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Erythrasma -what is this? -how does it appear under wood's lamp?
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Porphyria Cutanea Tarda -skin fragility, blistering photosensitive rash - due to disorder in heme synthesis
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65-year-old man had a 5 year history of increased skin fragility and blistering in sunexposed areas particularly the forearms, hands, and face. Note the tense blisters, crusts, and milia on the tops of the hands. What is the most likely diagnosis? Sunburn Vitiligo Erthrasma Collagen defect Fluorescent Tinea Porphyria Cutanea Tarda
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'Porphyria' Cutanea Tarda
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This condition is confirmed in the presence of orange-red fluorescence in the urine when examined with a Wood's Lamp Sunburn Vitiligo Erthrasma Collagen defect Fluorescent Tinea 'Porphyria' Cutanea Tarda
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Potassium Hydroxide Preparation
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is a quick, inexpensive fungal test to differentiate dermatophytes and Candida albicans symptoms from other skin disorders like psoriasis and eczema Potassium Hydroxide Preparation Tzanck Smear Scabies Preparation Pediculosis Gram Stain
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Tzanck Smear
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s scraping of an ulcer base to look for Tzanck cells. It is sometimes also called the chickenpox skin test and the herpes skin test. + test will show multinucleated giant cells. Potassium Hydroxide Preparation Tzanck Smear Scabies Preparation Pediculosis Gram Stain
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men: genitals women: under breast kids: interdigitals -worse at night!
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Scabies will often be here for men? women? children? worse at morning or night?
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Scabies Preparation
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This will appear to be a tunnel under the skin. patient will complain that it is irritating at night especially. Potassium Hydroxide Preparation Tzanck Smear Scabies Preparation Pediculosis Gram Stain
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Gram Stain
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When you suspect bacterial, fungal, or herpes, then this diagnostic technique will be most helpful. Potassium Hydroxide Preparation Tzanck Smear Scabies Preparation Pediculosis Gram Stain
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Eye (.05mm)/(.3mm) Palms/Soles: (1.5mm) Back: (3mm)
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Details Eye -layer thickness of the epidermis/dermis? Palms/Soles - layer thickness of epidermis Back -dermis layer?
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ALWAYS a punch biopsy bc of the depth of the lesion.
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What type of biopsy do you do when you have a melanoma?
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Anything from Warts to skin cancers (-5 C)= Melanocytes (-25 C)=benign lesions (-50 C)= for malignant/keratinocytes (30 Secs=10 sec bursts)
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How do we use cryotherapy today? - what temp does it have to be for malignant lesions -benign lesions? -temp to kill keratinocytes? - temp to kill Melanocytes?
