Miscellaneous Quiz / urinary tract pathogens

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Can you name the urinary tract pathogens?

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Condition with common antimicrobial resistant organisms
Normal intestinal flora and found in the environment --> endogenous and nosocomial infections
Bladder or kidney infection associated with a condition that increases the risk of failing tx (MDR pathogen)
Found in the intestinal tract --> endogenous from medical procedure, nosocomial
Pathogen(s): Lactose (+) slowly, red pigments
Bacteria in urine without s/s attributable to UTI
Pathogens in uncomplicated infections
Tx of acute uncomplicated cystitis
Tx of acute uncomplicated pyelonephritis and complicated UTI
Gram (+) cocci
Pathogen(s): Non-motile, lactose (+), urease (-)
Class of pathogens: Gram (-) rods, facultative anaerobes, ferment glucose, NITRATES (+), catalase (+), OXIDASE (-)
Pathogen(s): Motile, lactose (+), urease (-)
Other gram (-) rods
Gram (+) cocci in chains, catalase (-), lancefield's group B (GBS)
Pili, capsule, endotoxin
Class of pathogens: Serologic classification O (always present), H (flagellar), and K (capsular)
Pathogen(s): Swarming motility, lactose (-) urease (+)
Cx: McConkey agar. Lactose (+) pink
Environment colonizes skin and vaginal tract --> endogenous transmission
Ubiquitous in the environment and transient flora --> a variety of opportunistic infections
Gram (+) diplococci or short chains, catalase (-), lancefield's group D
Adhesins, capsule, endotoxin
Cx: McConkey agar: lactose (+) pink, mucoid colonies
HintAnswer
Gram (+) cocci in clusters, catalase (+), coagulase (-)
Class of pathogens: LPS (lipopolysaccharide aka endotoxin), O antigen, Core polysaccharides (aka enterobacterial common antigen), lipid A (toxic part)
VF: adhesin, toxins, and enzymes. All strains carry some drug resistance, some are vancomycin
Cx: No hemolysis on blood agar, novobiocin resistant
Pathogens in complicated or nosocomial infections
Bladder or kidney infection in pt with underlying structural or functional abnormalities of the GU tract
Normal flora of the intestinal and upper respiratory tract that cause endogenous + nosocomial infections
Pili; capsule, endotoxin, extracellular enzymes and toxins, pigments (pyocyanin & pyoverdin or fluorescin)
ADHERENCE: P-pilus (pyelonephritis associated pilus); other adhesins (FimH). DAMAGE: hemolysin (pore forming LPS)
Cx: Alpha or no hemolysis on blood agar, resistant to 40% bile salts, 6.5% to NaCl, bacitracin, and optochin
Cx: beta-hemolysis on blood agar, bile resistant
Bladder or kidney infection in healthy, young, nonpregnant women
Uncommon, can occur with severe pyelonephritis or following bacteremia from of site of infection
Causes UTI in pregnant women and is the main cause of meningitis in neonates
10-20% of UTIs in sexually active young women (cystitis)
Cx: McConkey agar: lactose (-) white, swarming motility
Cx: Red pigment, distinctive brick-red colonies
Gram(-) rods, motile, oxidase (+), adaptability to minimal nutritional requirements
Upper respiratory and genitourinary tract flora --> endogenous infection
ADHESINS: urease (higher pH, urinary stones --> chronic infections); endotoxin
VF: capsule, peptidase, and hydrolytic enzymes
Blue-green colonies, grows at 42C, fruity aroma, mucoid, fluorescent under UV light
Normal intestinal flora --> endogenous ascending infections

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Created May 21, 2011ReportNominate
Tags:pathogen

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