Pregunta 1
Pregunta
Ingredients in Mannitol Salt Agar
Respuesta
-
Salt, mannitol, phenol red
-
Salt, mannitol, lysostaphin, red coloring
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Mannitol, sheep blood, lysostaphin, red enzymes
Pregunta 2
Pregunta
Micrococcaceae is not ubiquitous
Pregunta 3
Pregunta
[blank_start]Staphylococcus aureus[blank_end] are the most common causes of osteomyelitis and acute bacterial endocarditis
Pregunta 4
Pregunta
[blank_start]Staphylococcus saprophyticus[blank_end] is a common cause of urinary tract infection in young females
Pregunta 5
Pregunta
Common infections of [blank_start]CNS[blank_end] include, UTI, bacterial endocarditis, infection of prosthetic joints, septicemiain immunosuppressed patients, wound infections and peritonitis.
Respuesta
-
CNS
-
S. saprophyticus
-
S. aureaus
-
Micrococcus
Pregunta 6
Pregunta
[blank_start]food poisoning[blank_end] is due to ingestion of of pre-formed enterotoxin in food- microorganisms do not have to be present
Respuesta
-
food poisoning
-
food infection
-
CNS
-
Micrococcus
Pregunta 7
Pregunta
Which Micrococcaceae is catalase negative?
Respuesta
-
Micrococcus
-
Stomatococcus
-
Planococcus
-
Staphylococcus
Pregunta 8
Pregunta
A staphaurex with a clear background a white speckles is what?
Pregunta 9
Pregunta
An organism grows on a mannitol salt agar plate and is pink. What can be said about this organism?
Respuesta
-
Salt +, Mannitol -
-
Salt +, Mannitol +
-
Salt -, Mannitol +
-
Salt -. Mannitol -
Pregunta 10
Pregunta
how would you interpret a bacitracin test if the organism measures at 16mm
Respuesta
-
resistant
-
senstitive/susceptible
Pregunta 11
Pregunta
Should staphylococcal food poisoning be treated with antibiotics?
Pregunta 12
Pregunta
What can be said about an organism that grows on a mannitol salt agar plate and is yellow
Respuesta
-
salt -, mannitol +
-
salt +, mannitol -
-
salt -, manntol -
-
salt +, mannitol +
Pregunta 13
Pregunta
negative slide coagulase tests need to be backed up with a tube test
Pregunta 14
Pregunta
If coagulase tube test clots up and becomes a jelly like substance what is it?
Pregunta 15
Pregunta
S. aureas commonly produces beta lactamase and renders penicillin useless
Pregunta 16
Pregunta
virulence factors for s. aureus include all of the following EXCEPT:
Respuesta
-
Coagulase
-
Protein A
-
Exotoxin
-
Toxic Shock Toxin
Pregunta 17
Pregunta
Which test is used to differentiate between Staph's and Strep's?
Respuesta
-
catalse
-
coagulase
-
staphaurex
Pregunta 18
Pregunta
What common contaminant is isolated from blood cultures?
Respuesta
-
S. aureus
-
Coag Neg Staph
-
micrococcus sp
-
s. saprophyticus
Pregunta 19
Pregunta
Superficial skin infection usually involving the face or legs, begins as red macule which progresses to a vesicle which ruptures and forms a yellow, thick crust. May spread and form multiple lesions, more prevalent in the summer months
Respuesta
-
Impetigo
-
Erysipelas
-
Osteomalitis
-
Septic Arthritis
Pregunta 20
Pregunta
Skin infection which begins abruptly after an incubation period of about a week. Begins with the sensation of tightness and burning at site of invasion, followed quickly by a patch of erythema which rapidly extends outward; may form blisters which may rupture, leaving raw weeping areas
Respuesta
-
Impetigo
-
Erysipelas
-
Septic Arthritis
-
Osteomyelitis
Pregunta 21
Pregunta
An infection in a bone. Infections can reach a bone by traveling through the bloodstream or spreading from nearby tissue
Pregunta 22
Pregunta
S.Aureus Colony Morphology: Large, frequently [blank_start]yellow[blank_end], opaque, [blank_start]creamy[blank_end], smooth, shiny, domed, round. Often but not always [blank_start]beta[blank_end] hemolytic
Respuesta
-
yellow
-
white
-
gray
-
offwhite
-
creamy
-
chalky
-
sticky
-
dull
-
beta
-
gamma
-
alpha
Pregunta 23
Pregunta
Mrsa is slide coagulase neg or pos
Pregunta 24
Pregunta
CNS colony morphology- [blank_start]offwhite[blank_end], round, domed, [blank_start]smooth[blank_end], sometimes not as creamy as s.aureus, usually smaller colonies than s. aureus, usually non-hemolytic or beta
Respuesta
-
offwhite
-
yellow
-
green
-
denim blue
-
smooth
-
sticky
-
dull
-
chalky
Pregunta 25
Pregunta
S. Sapticus colony morphology. often pigmented [blank_start]yellow[blank_end], opaque, [blank_start]sticky[blank_end], gummy, [blank_start]non-hemolytic[blank_end]
Respuesta
-
yellow
-
white
-
off-white
-
gray
-
green
-
sticky
-
creamy
-
chalky
-
dull
-
non-hemolytic
-
beta
-
alpha
Pregunta 26
Pregunta
Stomatococcus mucilaginosus colony morphology: [blank_start]small[blank_end], domed, adherent, [blank_start]gray-brown[blank_end], tough, [blank_start]stringy[blank_end]
Respuesta
-
small
-
medium
-
large
-
pinpoint
-
gray-brown
-
white
-
off-white
-
yellow
-
stringy
-
creamy
-
wet
-
chalky