Shared Flashcard Set

Details

Dermatology
First Year, Week Two
50
Medical
Undergraduate 1
05/06/2009

Additional Medical Flashcards

 


 

Cards

Term
Topical - directly to surface of skin
Subcutaneous - Inserted into fatty tissue just beneath skin surface
Transdermal - incorporated into an adhesive patch and applied to the epidermis
Definition
Major route of drug administration
Term
Nature of skin - thickness/hydration
Drug conc/properties
Definition
Factors influenciing Topical route of drug administration
Term
Route of preference for many protein drugs eg insulin
relatively simple and painless
Definition
advantages of Subcutaneous route of drug administration
Term
user friendly, convenient, painless
rapid termination of action
avoidance of first pass metabolism
Definition
advantages of transdermal route of drug administration
Term
Glucocorticosteroids
Definition
Widely used in treatment of atopic eczema
Term
Staphylococcus
Definition
Gram positive cocci in clusters
Can grow both aerobically and anaerobically
Term
Staph Aureus
Definition
Common human pathogen, produces plasma clotting enzymes eg coagulase, causes would,skin,joint and bone infections
Term
MRSA
Definition
Antibiotic resistant strain of Staph Aureus
Term
Staph Epidermidis
Definition
Not usually pathogenic, causes infection in assiociation with artificial joints, heart valves and IV catheters
Term
Staph Saprophyticus
Definition
Common cause of UTIs in women of chld bearing age
Term
Streptococcus
Definition
Gram positive cocci in chains "strips"
Term
Staph aureus
Strep Pyogenes
Definition
Bacterial skin infections (2)
Term
Flucloxacillin
Definition
Treatment of staph aureus skin infection
Term
Penicillin
Definition
Treatment of Strep pyogenes skin infection
Term
Swab legion or pus
Definition
Diagnose Bacterial skin infection
Term
Leg ulcers
Definition
Underlying problem is usually vascular, should only take swabs from these if signs of cellulitis/infection
Term
Strep pyogenes
Staph aureus
anaerobes
Definition
Organisms worth treating for with leg ulcers (3)
Term
TINEA = Ringworm
Definition
Fungal skin infections
Term
Other infected individuals
Animals
Definition
Sources of fungal infection (2)
Term
Woods light
skin scrapings
nail clippings
hair sample
Definition
Investigations to confirm diagnosis of fungal infection
Term
CANESTAN cream for small area
Oral TERBINAFINE OR ITRACONAZOLE for extensive infection
Definition
Treatmeant of fungal infection
Term
Benzyl Benzoate
Malathion
Definition
Treatment of scabies
Term
Malathion
Definition
Treatment of lice
Term
Chicken pox (childhood) and shingles (adult)
Definition
Viral infections due to varicella zoster virus
Term
Shingles
Definition
Viral infection with dermatomal distribution
Term
Herpes Simplex Virus
Definition
Recurring virus that causes extensive ulceration in and around the mouth
Term
Swab with viral transport medium
Antibody test where site inaccesible for swab
Definition
Lab confirmation of viral infection
Term
Human papilloma virus
Definition
Common viral infection, mainly seen in children. Also associated with cervical cancer.
Term
Hyperkeratosis
Definition
Increased thickness of keratin
Term
Parakeratosis
Definition
Persistence of nuclei in the keratin layer
Term
Acanthosis
Definition
Increase thickness of epithelium
Term
Papillomatosis
Definition
Irregular epithelial thickening
Term
Spongiosis
Definition
odema fluid between squamous cells
Term
Eczema
Definition
Non infective inflammatory skin condition that shows itching, redness and scaling, effecting flexure areas behind the knees and elbows
Term
Contact dermititis
Definition
Important type of dermatitis common case with irritants and allergens (type 4 hypersensitivity)
Term
Psoriasis
Definition
Chronic, non infectious, inflammatory condition characterised by red plaques topped by silvery scales in extensor areas - elbow and knees
Term
1.5-3.0%
Definition
Percentage of population affected by psoriasis
Term
polygenic
35%
Definition
Inheritance in psoriasis is...
and what percent have a family history
Term
Acne
Definition
Distribution reflects sebaceous gland sites.
Term
Androgen
Definition
Acne can be caused by increased production of this a puberty
Term
Bullous pemphigus
Definition
Rare. severe auto immune blistering disorder affectin skin and mucous membranes
Term
Steroid treatment
Definition
Treatment for bullous pemphigus
Term
Bullous Pemphigoid
Definition
Sub epidermal blistering, common in elderly
Term
Acantholysis - lysis of intercellular adhesion sites
Definition
Common to all variatns of bullous pemphigus but not to bullous pemphigoid
Term
Immunofluorescence
Definition
In bullous pemphigoid what shows linear IgG deposited around the basal membrane
Term
Naevi
Definition
Formed when the normal ratio of melanocytes to keratinocytes breaksdown at number of cutaneous sites during infancy
Term
Malignant Melanoma
Definition
Skin tumour More common in females, due to UVB exposure, arise in skin
Term
Ulceration, bleeding, irregular pigmentation, change in shape, development of nodule
Definition
Suspect melanomas
Term
Surgical excision. Difficult to treat if advanced.
Definition
Treatment of Melanomas
Term
Avoid blistering in sun
Use UV block
Definition
How to prevent getting melanoma
Supporting users have an ad free experience!