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82 Cards in this Set
- Front
- Back
What is the causative organism for Pitted Keratolysis?
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Corynebacteria
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What color does pitted keratolysis fluorsce when examined with a Wood's Lamp
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Coral red
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What is the most common infecting organism for superficial white onychomycosis
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Tricophyton mentagrophytes
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Which disease is characterized by weeping granulomas and sinus tracts of the foot due to infection with pseudoscheria boydii
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madura foot
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what is the treatemnt for cutaneuous larva migrans
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topical thiabndazole
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Name a higly contagious form of scabies seen in patient s with HIV disease.
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Norwegian scabies
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A Cub scout complinas of a pricly sneastion on his legs after wading in a lke on a sunny day in November. His cout troop is visitaing a wildlife preserve in Upstate New York. Red macules appear hous later, which begin to itch over the remainder of the evening. Diagnosis?
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cerarial dermatitis (swimmer's itch)
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What is the causative organism of r hand, foot, and mouth disease?
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Cosxackie virus (most commonly A16)
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A 16 year old boy presents with aysmpomatic umbilicated papules on the dorsum of his right foot. Most likely diagnosis?
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Molluscum contagiousum
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What medication is used to treat chromoblastomycosis?
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Itraconazole
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What is the most common causative organism for septic arthritis
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Staphlylococcus Aureus
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What is the correct dosage regimen for treating a serious diabetic infection of the foot with IV trovafloxacin
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200mg 24 hours
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What antibiotic is contraindicated in patients with a seizure history
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Imipenam/cilastin
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What consultation is important when palcing a patient ofn IV aminoglycosides
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Audiology
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The most common infecting organism in pediatric septic arthritis is staphylococcus aureus. What organism is also very prevalent?
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Kingella kingae
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Which oral antifungal is known to cause taste disturbances and green vision
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terbinafien
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Which oral antifungal is known to cause bony malformation and CNS defects in the fetus when admnistered to pregnant females?
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Fluconzole
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Identify 2 oral antimicrobials that may incite serious adverse effects in those patients currently taking a n HMG CoA reductase inhibitor
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Itraconazole and Erythromycin
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What malignancy can develop in an area of chronic osteomyelitis
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Epidermoid carcinoma
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What is Brodie's abscess
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A metaphyseal bone abscess surrounded by granulation tissue and sclerotic bone in cases of chronic osteomyelitis
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What organism is usually responisble for erysipelas
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Group A Streptococcus
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What cultures might one order ot diagnose an extrapulmonary tuberculosis infection of a pedal phalnx
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Acid fast cultures
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In what type of infection is eosinophillia classically observed?
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Parasitic infections.
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What titers are drawn to aid in the diagnosis of rheumatic fever?
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Anti-streptolysiin O titers
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What antigens are present on the cell membrane of Staphylococcus that may be of diagnostic benefit
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Teichoic acids
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For which disease are Osler's nodes and Janeway lesions of diagnostic benefit?
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infectious endocarditis
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If choosing an antibiotic for prevention of infectious endocarditis in a high risk individual, what treatment approach should be followed when the patient is already on an antibiotic for some other reason?
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Choose an antibiotic from a different class
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What is the name of the skin lesion at the site of the tick bite in Lyme Disease patients?
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Erythema chronicum migrans
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Which antibiotic is known to turn body fluids an orange color?
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Rifampin
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Which antibiotic has been implicated as a cause of tendon ruptures
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ciprofloxacin
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Which antibiotics should only be used with extreme caution in diabetic patients on oral sulfonylureas?
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Sulfonamides
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Why is Ceftin (cefuroxime) contraindicated in pregnant patients?
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Chance of renal tubular lesion formation int he fetus and mother.
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What skin manifestation is characteristically seen in 2-6% of patients with sepsis secondary to pseudomonas aeruginosa?
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Ecthyma gangrenosum
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In which genetic disease is infection with pseudomonas aeruginosa a common problem
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cystic fibrosis
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What nail disease is caused by pseudomonas aeruginosa?
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Green Nail Syndrome
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Which infection characteristically gives a fruity odor?
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Infections with Pseudomonas aeruginosa
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What topical medications should be used for infected burn wounds when heavy eschar is present?
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Mafenide (Sulfamylon).
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A patient presents with dystrophic nails that have flecks of pigmentation throughout the nail plate. For which pathogen is this suggestive as a cause of onychomycosus
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Aspergillus niger
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According to the Cierny and Mader classification for osteomyelitis, what would the designation be for an HIV positive patient with diffuse osteomyelitis of the right calcaneus?
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Stage 4 Bs.
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In what instance are fluoroquinolones a possible risk for the induction of seizures?
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Concomitatn administration of NSAIDS and a fluoroquinolone may increase penetration of drug in to CSF and interact with excitatory neurotransmitters.
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Ciprofloxacin and Itraconazole may be subject to specific drug interactions due to their metabolism. Explain.
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These drugs are inhibitors f the hepatic cytochrome p450 enyme pathway.
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Which microorganism is responsible for LYme Disease
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Borrelia burdrofei
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What skin test is often positive in patients with septic arthritis caused by Mycobacterium tuberculosis?
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PPD
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A 55 year old female gardener steps on a rose bush lying on the ground. A thorn penetrates the 1st MPJ what organism must be considered as a possible eitiology for her painful, swollen septic joint.
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Sporothrix Schenkii
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What are 2 white blood cell labeled bone scans
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Indium 111 and Tc HMPAO
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Which group of organism is not covered by clindamycin?
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Gram negative aerobes
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Which group of organisms is not covered by levofloxacin?
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Anaerobes
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Name 2 antibiotics that can be used to treat pseudomembranous colitis
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metronidazole and vancomycin
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Which cephalosporin is often used in place of ceftriaxone (rocephin) due to its similar coverage and cost efficiency?
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Cefotaxime (Claforan)
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What organism is the major concern in patients with lymphangitis and cellulitis of the lower extremity?
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Beta Hemolytic Streptococcus
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What bacteria are often infecting organisms secondary to traum associated with salt water injury
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Vibrio species
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In which type of puncture wound of the foot might you see Eikenella corrodens on culture results?
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Toothpick wounds
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What mold has been documented as a cause of a life-threatening sepsis following pedal infection in immunocompromised patients, particularly those who garden in their bare feet?
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Fusarium
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How is cutanea larva migrans transmitted to humans?
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Contact with hookworm-infested dog or cat feces on public beaches
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What lower extremity manifestations may present in a person with Neserrial meningitis
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Palpable purpura on the lower legs
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What color do mycobacteria appear against a dark background on acid-fast stains
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yellow or red
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What are the typical symptoms of a patient with pseudomembranous colitis?
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Life-threatening toxic megacolon may result
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What arthritic disorder of the feet, ankles, and sacroiliac joints is associated with bacterial infection (e.g chlamydia)
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Reiter's Syndrome
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What dermatologic manifestation is seen on initial presentation of patients with Rocky Mountain Spotted Fever?
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Erythematous macules on the ankles and wrists.
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Name 3 cause of Steve-Johnson Syndrome
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Herpesvirus infections I, pregnacy, drugs
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In what infectious disease does on e observe the classic "strawberry tongue"
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scarlet fever
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Which antibiotic is contraindicated in children under eight years of age due to its potential to cause permanent discoloration of the teeth?
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Tetracycline
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In what infectious disease does one observe the classic "strawberry tongue"
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Scarlet Fever
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Which antibiotic is contraindicated in children under eight years of age due to its potential to cause permanent discoloration of the teeth?
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Tetracycline
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For what infection are multinucleated giant cells on Tzanck smear diagnostic?
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Herpes Infections
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With which class of antibiotics does potential major adverse effects exist in patients taking Digoxin?
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Macrolides
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With which oral antifungal have potential adverse effects been documented with patients taking tricyclic antidepressants?
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terbinafine
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Patients with sickle cell anemia, and other hemoglobinopathies, have a higher incidence of osteomyelitis with which organisms?
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Salmonella
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What does gas in the soft tissue indicate?
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An anaerobic infection. Aerobic metablism does not produce gas.
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Is "saline aspiration" from the leading edge of cellulitis a useful clinical tool?
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No it is rarely productive for pathogens
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What are the classic signs of a necrotizing infection?
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Bistering and necrosis but these are generally late findings.
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What is a clue to early diagnosis fo a necrotizing infection?
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The pateint's marked systemic toxicity in light of what appears to be "ordinary" cellulitis.
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What is another name for clstridial myonecrosis
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Gas gangrene
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For what infection are multinucleated giant cells on Tzanck smear diagnostic?
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Herpes infections.
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With which lass of antibiotics does peintial major adverse effects exist n patients takng Digoxisn?
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macrolices
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With which oral antifungal have poetneian aerious adverse effects been documented with paients taking tricuclic antidepresedsants?
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terbinafien.
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Patients with sckle cell anemai, and other hemoglobinopatnhies, hav e a higher incidence of soteomhyelits with which organism
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Salmonella
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What does gas i nshtes soft tissues indicated?
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an aneerobic infeciton. Aerobic metabolism dos not produce gase.
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Is "saline aspiration" form thne leading edge of cellulities a luseful clincial tool?
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No, it is rarely productive fro pathogens.
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Wha re the clssci signs of a necrotizing infeciton?
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blistering and necorsis but thses are gnerally alte findings.
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What is a clue ot early diagnoss if a mncrtoitazing infection?
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The patient's marked systemic toxixity in ligh to what appeaers to be "ordinary" cellulitis
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What is another name of rclsotridial myonecrosis?
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gas gangrene
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