MSS micro quiz
The member of the normal flora considered responsible for tinea versicolor is .
Staphylococci.
Diptheroids.
Candida spp
Malassezia spp.
A massive lesion with multiple draining sinuses caused by the spread of Staphylococcus aureus infection (often on the neck and upper back) is called:
Furuncle(boil)
Abscess
Carbuncle
Pustule
Which of the following is not the characteristics of impetigo?
Common in children
Can be caused by Staphylococcus aureus
Most common cause is Streptococcus pyogenes
highly contagious
Pseudomonas is not a cause
Gas gangrene is most likely associated with infection with:
Staphylococcus aureus
Strep pyogenes
Clostridium difficile
Clostridum perfringens
Neisseria
Anaerobs
Which of the following is true about impetigo
The condition does not resolve spontaneously without treatment
Exfoliative toxins target desmogleins type 3
Staph aureus is the most common cause of bullous impetigo followed by strep pyogenes
Diagnosis is made based on skin clinical findings and history
Non-bullous Impetigo is painful
An 18-year-old man presents with a painful rash on his upper arm. He reports a recent mosquito bite in the same area three weeks ago. Since then, the upper third of his arm has become red, painful, and hot. On physical exam, his physician notes a well-demarcated raised area that is bright pink and hot to the touch. Which of the following is a possible casue
Impetigo
Cellulitis
Erysipelas
Furuncle
Tinea corporis
Which of the following is wrong about deep skin infections(more than one answer may be chosen)
Erysipelas and cellulitis can be difficult to distinguish in some cases
Erysipelas and cellulitis management is different
An alternative for penicillin allergic cellulitis patient is aminoglycoside
Wound cultures and blood cultures are performed to guide antibiotic choice but are not essential for cellulitis diagnosis
Risk factors such as immunosuppresion and skin trauma/damage are present in most of cases
Strep pyogenes is the most common cause followed by staph aureus
Rheumatic fever, followed by glomerulonephritis, are complication of strep pyogenes skin infections
Which of the following is wrong about hair follicle infections(more than one option may be chosen)
Furuncles(boils) are painless whereas carbuncles are painful
Folliculitis heals with scar
Pseudomonas are only involved in hot tub folliculitis
In some cases, carbuncles may be treated with antibiotics alone
Furuncle(boils) involve all of hair follicle and is treated by incision and drainage
Staph aureus is main causative agent in all hair follicle infections
Furuncle(boil) has multiple draining sinuses
Which of the following about necrotizing fasciitis is wrong(more than one option may be chosen)
Viruses may be causes
Plain x-rays are very useful in identifying it
Imaging studies like CT, MRI, and ultrasound shouldn't delay treatment in highly suspected cases
Pain out of proportion to physical findings is a very helpful symptom
Antibiotics are the mainstay of treatment, surgical debridement may not be necessary in some cases
Hyperbaric oxygen hasn't been shown to reduce mortality in conjuction with surgery and antibiotics
Which of the following is true ?(more than one option may be chosen)
Clostridial myonecrosis is the most common cause of necrotizing fasciitis
Fourniers gangrene affects perineal area
Most cases of necrotizing fasciitis is polymicrobial(type 1)
Multidisciplinary team has to be involved in treatment of necrotizing fasciitis
Type 4 necrotizing fasciitis is causes by marine vibrio organisms
Mortality rate of necrotizing fasciitis has become very low in modern times due to treatment
One of the routine microscopic laboratory identification methods of the fungal specimens is done by using..
Direct light microscopy
Immunoflouresence
Giemsa stain
KOH mount
All of the following are true regarding Tinea capitis EXCEPT
It is caused by a type of fungi called dermatophytes.
T leads to bald, scaling patches in the scalp.
It is commonly referred to as 'ringworm of the scalp.'
It is treatable with oral antifunals and azoles whereas topical antifungals won't be effective
It is caused by a worm burrowing into the skin.
Your patient is a sportsman who plays racket ball at a local club, softball, and hockey in the winter. The patient presents with a pruritic, erythematous, moist, rash on his groin. The infected area is the skin on the upper thigh and especially folds on the lower abdomen; both the scrotum and penis are spared. What is the most likely causative agent of this patient’s condition?
Trichophyton rubrum
Hortae wernickea
Malassezia furfur
Sporothrix schenkii
Which of the following is wrong about fungal skin infections(more than one answer may be chosen)
Pityriasis versicolor lesions are characterized by hypo-hyper pigmentations but may have some scaling and induration
Soft and loose white piedra is caused by piedra hortae
Sporotrichosis is characterized by painful ulcers along lymphatic vessels and can be caused by many fungal species
Mycetoma has multiple draining sinuses and many fungal species may cause it
Chromoblastomycosis does not involve lymphatics and develops scaly wart like lesions through inoculation of a specific single fungal species
{"name":"MSS micro quiz", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"The member of the normal flora considered responsible for tinea versicolor is ., A massive lesion with multiple draining sinuses caused by the spread of Staphylococcus aureus infection (often on the neck and upper back) is called:, Which of the following is not the characteristics of impetigo?","img":"https://www.quiz-maker.com/3012/images/ogquiz.png"}