Streps/Staphs
Staphylococci are catalase-positive, gram positive cocci that resemble other bacteria that are members of what family?
Micrococci
The organism most commonly associated with neonatal purulent meningitis is?
Strep agalactiae
A reliable test for distinguishing S. aureus from other Staphs is?
Which test can be performed to distinguish between Enterococcus and Lancefield group D streptococci?
What 2 tests have been mainstays in identification schemes for the non-beta-hemolytic, catalase negative, gram positive cocci?
Bile esculin and salt tolerance
Which 2 diseases are usually preceded by infection with beta-hemolytic streptococci
Glomerulonephritis and rheumatic fever
A tech is developing a lab QC procedure for the novobiocin identification test. Which 2 organisms would you choose?
Staph saprophyticus and Staph epidermidis
What is the hemolysin responsible for hemolysis on SBA incubated anaerobically?
Steptolysin O
The optochin disk is used for identification of what organism?
Strep. Pneumoniae
Viridians streptococci can be differentiated from Strep pneumoniae by?
Bile solubility
What disease is produced by group A streptococci that is characterized by a rapidly progressing inflammation and necrosis of the skin, subcutaneous fat, and fascia?
Necrotizing fasciitis
Which lancefield group? Wide zone of beta hemolysis, bacitracin susceptible, PYR positive, CAMP negative?
Name two diseases caused by streptococcus pyogenes
Strep throat, scarlet fever, cellulitis, impetigo, otitis media
The CAMP test is performed by streaking unknown Streptococci perpendicular to a streak of?
Staphylococcus aureus-hemolytic strain
Which lancefield group? Narrow zone beta hemolysis, CAMP positive, bacitracin resistant, PYR negative?