Aerobic Gram-Positive Cocci
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| show | novobiocin susceptibility
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| show | Abiotrophia defectiva
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| Viridans streptococci can be differentiated from Streptococcus pneumoniae by: | show 🗑
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| show | coagulase
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| show | Streptococcus pneumoniae
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| In the optochin susceptibility test, if there is a zone of inhibition of 19-30mm surrounding the disk following overnight incubation at 37C, the colony MOST likely consist of: | show 🗑
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| show | glomerulonephritis and rheumatic fever
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| The enterotoxin produced by certain strains of hemolytic, coagulase positive Staphylococcus aureus: | show 🗑
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| A gamma-hemolytic Streptococcus that blackens bile esculin agar but does not grow in 6.5% NaCl broth is MOST likely: | show 🗑
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| show | catalase production and coagulase test
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| show | bile esculin, PYR, bacitracin, and hippurate
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| "Nutritionally deficient" streptococci are: | show 🗑
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| A beta-hemolytic streptococcus that has been isolated from an ear culture grows up to the edge of a 0.04 unit bacitracin disk. Which tests would help to determine if the organism is Entercoccus? | show 🗑
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| show | group B streptococci
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| show | Streptococcus pyogenes
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| show | Staphylococcus epidermidis
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| Which of the 2 different antimicrobial agents are commonly used and may results in synergistic action in the treatment of endocarditis caused by Enterococcus faecalis? | show 🗑
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| show | acute glomerulonephritis
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| A gram-pos coccus isolated from a blood culture has the following characteristics: optochin suscept-neg, bacitracin suscept-neg, bile esculin hydrolysis-neg, hippurate hydrolysis-pos, catalase-neg. The organism is MOST likely: | show 🗑
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| A beta-hemolytic streptococci that is bacitracin-sensitive and CAMP-negative is: | show 🗑
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| A beta-hemolytic Streptococcus that is bacitracin-resistant and CAMP-positive is" | show 🗑
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| show | latex antigen typing
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| It is important to differentiate between Enterococcus and group D strep because: | show 🗑
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| Streptococcus pneumonia can be differentiated best from the viridans group of streptococci by: | show 🗑
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| show | relatively resistant to penicillin
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| A beta-hemolytic, catalase positive, gram-positive coccus is coagulase negative by the slide coagulase test. Which is the MOST appropriate action in identification of this organism? | show 🗑
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| Which would best differentiate Streptococcus agalactiae from Streptococcus pyogenes? | show 🗑
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| The MOST critical distinction between Staphylococcus aureus and other Staphylococcus is: | show 🗑
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| Which organisms is, to date, considered universally susceptible to penicillin: | show 🗑
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| show | latex antigen testing
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| How many hours after eating contaminated food do initial symptoms of staphylococcal food poisoning typically occur? | show 🗑
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| During the past month, Staphylococcus epidermis has been isolated from blood cultures at 2-3 times the rate from the previous year. The MOST logical explanation for the increase in these isolates is: | show 🗑
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| An outbreak of Staphylococcus aureus has occurred in a hospital nursery. In order to establish the epidemiological source of the outbreak, the MOST commonly used typing method is: | show 🗑
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| A yellow colony from a wound culture tested catalase-positive and coagulase-negative. The organism stained as gram-positive cocci in clusters. Which tests would differentiate between coat-neg staph and Micrococcus? | show 🗑
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| A light yellow colony from a skin lesion grew aerobically and was catalase positive and coag neg. Gram stained as positive cocci in clusters, modified oxidase positive, bacitracin susceptible and resistant to lysostaphin. The identification is? | show 🗑
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| show | CAMP test and S. agalactiae
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| show | Enterococcus faecalis
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