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podiatric medicine exam 1 Questions and Complete Solutions Graded A+
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podiatric medicineexam 1 Questions and
Complete Solutions
Graded A+
Denning Muriithi [Date] [Course title]
, podiatric medicine exam 1
1. [...]% of the world's population will experience a cutaneous mycotic infec-
tion in their lifetimes. [...]% of the population will have fungal infections of
the feet. [...]% of those with tinea pedis will have recurrent episodes for more
than a decade. Answer: 70% ; 15% ; 45%
2. dermatophytes are pathogenic fungi that utilize an enzyme known as [...]
in order to inhabit [cold & dry/warm & moist] environments such as hair &
nails. these organisms also invade keratinized layers of the skin, particul arly the
infection is held in check via [...] & hardly progresses past this [...]. unless
layer is [...]. we are to know that these organisms have an average one ation
incub of [...] & cause a rash with a characteristic [...] pattern. in period
order to d an individual has this, taking a skin scraping from the etermine if
[...] Answer: keratin moist ; stratum corneum ; cell-mediated ase ; warm
immunity ; does not progresse & s unless
is immunocompromised ; 1-3 week incubation period ; centrifugal
pattern known as "circular scaling" ; active scaling border (not the clear
center)
3.the most prevalent mycotic skin infection worldwide is [...] which is
primarily caused by the organism known as [...], which is endemic to [...]. we
are to know that this dermatophyte [is/is not] aggressive, remains in the [...]
of one's skin & causes recurrent infections because it [...]. this organism is
unique in that it has cell wall glycoproteins which suppress [...], suppress
[...] & inhibit [...]. also know that this organism can survive as a [...]. Answer:
tinea pedis ; trichophyton rubrum (90% of cases) ; endemic to Asia,
Africa & Australia ; not aggressive ; remains in stratum corneum ;
evades immune surveillance
cell wall glycoproteins suppress inflammation, suppress cell-mediated
immunity & inhibit stratum corneum turnover
can survive as a spore, meaning it does not need to be on the human
body to live ; can live on household objects & latch onto human skin
upon contact
4. to burn it into your brain Answer:
what is the most prevalent mycotic skin infection? Answer: tinea pedis
(know that the word tinea is derived from the latin word which means
gnawing worm)
5. what are the three types of tinea pedis? Answer: dry & scaling
2/
, podiatric medicine exam 1
characterized by circular scaling lesions which may become confluent &
give pattern of generalized scaling ; commonly pruritic ; may assume a
moccasin distribution but may also be limited to interspaces where
cracking & fissuring of skin are seen
vesicular
3/
, podiatric medicine exam 1
multiple pruritic vesicles, typically on soles ; more commonly caused by
t. menta- grophytes ; can be mistaken for dyshidrotic eczema ; take
sample from skin where vesicle roof meets surrounding skin
severe & erosive (erosio interdigitalis blastomycetica)
severe interdigital infection of interdigital webspaces that presents as
an eroded erythematous area surrounded by macerated skin ; can lead
to secondary bacterial infx. that requires systemic antibiotics
6. Erosio Interdigitalis Blastomycetica
visualized Answer: severe, wet interdigital form of tinea ed bacterial
pedis w/ superimpos candidate infection or
systemic abx are needed for likely S. aureus & systemic antifungals
(terbinafine) needed
7. what is interdigital maceration?
how do you treat it? Answer: cutaneous candidiasis
also known as erosio interdigitalis
blastomycetica treatment
if wood's light shows coral red Answer: c. minutissimum, treat with
erythromycin
if wood's light does not show coral red Answer: topical antifungal
8. wood's light is [...]
nm. coral red is [...].
bright green is [...].
blue-green is [...].
gold is [...] Answer: 360
coral red Answer: c.
minutissimum bright
green Answer: tinea
capitis blue-green
Answer: pseudomonas
gold Answer: tinea
versicolor
9. how do you diagnose dry & scaling tinea pedis versus vesicular
4/
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