Flashcards in Dermatology (E1) Deck (64)
Which last longer, primary or secondary dermatology lesions?
Which primary skin lesions are >1cm large?
What is a flat spot <1cm on the skin with a change in color? What if it is >1cm? Primary or secondary lesion?
What primary skin lesion term describes a mosquito bite?
What do you call a sharply delineated lesion of edema?
What is the genetic defect that results in the collagen fibers in the skin having an abnormal structure resulting in weak skin that is extremely stretchy?
Cutaneous asthenia (Ehlers-Danlos syndrome, Collagen dysplasia)
What type of skin scrape would you do to look for sarcoptes or notoedres?
Superficial skin scrape
What test would you perform to look for hyphae or spores from ringworm or to look for lice?
What quick test can you perform to look for bacteria, fungi and yeast on the surface of the skin?
Scotch tape test
What range of needle gauges can you use to perform FNA?
What do you call a type of macule caused by bleeding into the skin?
Purpura, petechia or echymoses
How long must a Woods lamp be on before using it? Why?
Correct wavelength must be reached
Which of the following is NOT an indication for performing a culture for bacterial pyoderma?
-Cytology showing a mixed population or just rods
-Unresponsive cocci infection despite correct antibiotic use
-Severe bleeding and swelling that is unresponsive to treatment
Severe bleeding and swelling that is unresponsive to treatment
What is the Gold Standard for identifying environmental allergens?
Intradermal allergy testing
What is allergy testing serology not reliable for?
If you do not see fleas on a patient but suspect FAD, what other test can you perform? What is the definitive diagnostic test?
Flea dirt test
Flea antigen test (involving 3 injections- negative control, positive control and flea allergen)
What do you cal at coalition of papules forming a flat-topped elevation?
What do you call an accumulation of keratin and sebaceous material stuck to a hair shaft?
What is the difference between an erosion and an ulcer?
An ulcer is a break in stratum basale with exposure of the dermis, while an erosion is shallow and doesn't break the basal layer
What does it indicate if your DTM media turns red at the same time that the dermatophyte colony appears?
What if it appears a few days after the colony appears?
What can cause false positives with a Woods lamp?
What is used for the positive and negative controls in intradermal allergy testing?
Positive- Histamine, Negative-Saline
What do you call a small elevation of epidermis filled with pus? Filled with clear fluid?
What is the accumulation of loose fragments of the horny layer of skin called?
What do you call a linear abrasion of the skin? Is this a primary or secondary lesion? What if the linear lesion cleaves the epidermis or dermis, what is that called? Is that primary or secondary?
What is the unpleasant sensation of the skin that provokes the urge to scratch? Also spell it.
Name 2 commensal organisms found on dog skin.
What is the secondary lesion that involves thickening and hardening of the skin called?
What do you call a >1cm solid raised palpable lesion that could include an abscess? Also, what is an abscess?
Abscess- fluctuant lesion in dermis or SQ from pus