Micrococcaceae

Question 1 of 26

1

Ingredients in Mannitol Salt Agar

Select one of the following:

Salt, mannitol, phenol red
Salt, mannitol, lysostaphin, red coloring
Mannitol, sheep blood, lysostaphin, red enzymes

Explanation

Question 2 of 26

1

Micrococcaceae is not ubiquitous

Select one of the following:

True
False

Explanation

Question 3 of 26

1

Select from the dropdown list to complete the text.

( Staphylococcus aureus, Micrococcus, Staphylococcus saprophyticus, CNS ) are the most common causes of osteomyelitis and acute bacterial endocarditis

Explanation

Question 4 of 26

1

Select from the dropdown list to complete the text.

( Staphylococcus saprophyticus, Micrococcus, S. auerus, CNS ) is a common cause of urinary tract infection in young females

Explanation

Question 5 of 26

1

Select from the dropdown list to complete the text.

Common infections of ( CNS, S. saprophyticus, S. aureaus, Micrococcus ) include, UTI, bacterial endocarditis, infection of prosthetic joints, septicemiain immunosuppressed patients, wound infections and peritonitis.

Explanation

Question 6 of 26

1

Select from the dropdown list to complete the text.

( food poisoning, food infection, CNS, Micrococcus ) is due to ingestion of of pre-formed enterotoxin in food- microorganisms do not have to be present

Explanation

Question 7 of 26

1

Which Micrococcaceae is catalase negative?

Select one of the following:

Micrococcus
Stomatococcus
Planococcus
Staphylococcus

Explanation

Question 8 of 26

1

A staphaurex with a clear background a white speckles is what?

Select one of the following:

positive
negative

Explanation

Question 9 of 26

1

An organism grows on a mannitol salt agar plate and is pink. What can be said about this organism?

Select one of the following:

Salt +, Mannitol -
Salt +, Mannitol +
Salt -, Mannitol +
Salt -. Mannitol -

Explanation

Question 10 of 26

1

how would you interpret a bacitracin test if the organism measures at 16mm

Select one of the following:

resistant
senstitive/susceptible

Explanation

Question 11 of 26

1

Should staphylococcal food poisoning be treated with antibiotics?

Select one of the following:

Yes
No

Explanation

Question 12 of 26

1

What can be said about an organism that grows on a mannitol salt agar plate and is yellow

Select one of the following:

salt -, mannitol +
salt +, mannitol -
salt -, manntol -
salt +, mannitol +

Explanation

Question 13 of 26

1

negative slide coagulase tests need to be backed up with a tube test

Select one of the following:

True
False

Explanation

Question 14 of 26

1

If coagulase tube test clots up and becomes a jelly like substance what is it?

Select one of the following:

positive
negative

Explanation

Question 15 of 26

1

S. aureas commonly produces beta lactamase and renders penicillin useless

Select one of the following:

agree
disagree

Explanation

Question 16 of 26

1

virulence factors for s. aureus include all of the following EXCEPT:

Select one of the following:

Coagulase
Protein A
Exotoxin
Toxic Shock Toxin

Explanation

Question 17 of 26

1

Which test is used to differentiate between Staph's and Strep's?

Select one of the following:

catalse
coagulase
staphaurex

Explanation

Question 18 of 26

1

What common contaminant is isolated from blood cultures?

Select one of the following:

S. aureus
Coag Neg Staph
micrococcus sp
s. saprophyticus

Explanation

Question 19 of 26

1

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

Select one of the following:

Impetigo
Erysipelas
Osteomalitis
Septic Arthritis

Explanation

Question 20 of 26

1

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

Select one of the following:

Impetigo
Erysipelas
Septic Arthritis
Osteomyelitis

Explanation

Question 21 of 26

1

An infection in a bone. Infections can reach a bone by traveling through the bloodstream or spreading from nearby tissue

Select one of the following:

Osteomyelitis
Acute Bacterial Endocarditis
Impetigo
Erysipelas

Explanation

Question 22 of 26

1

S.Aureus Colony Morphology: Large, frequently ❌, opaque, ❌, smooth, shiny, domed, round. Often but not always ❌ hemolytic

Select option below to complete the highlighted text

yellow

white

gray

offwhite

creamy

chalky

sticky

dull

beta

gamma

alpha

Explanation

Question 23 of 26

1

Mrsa is slide coagulase neg or pos

Select one of the following:

negative
positive

Explanation

Question 24 of 26

1

CNS colony morphology- ❌, round, domed, ❌, sometimes not as creamy as s.aureus, usually smaller colonies than s. aureus, usually non-hemolytic or beta

Select option below to complete the highlighted text

offwhite

yellow

green

denim blue

smooth

sticky

dull

chalky

Explanation

Question 25 of 26

1

S. Sapticus colony morphology. often pigmented ❌, opaque, ❌, gummy, ❌

Select option below to complete the highlighted text

yellow

white

off-white

gray

green

sticky

creamy

chalky

dull

non-hemolytic

beta

alpha

Explanation

Question 26 of 26

1

Stomatococcus mucilaginosus colony morphology: ❌, domed, adherent, ❌, tough, ❌

Select option below to complete the highlighted text

small

medium

large

pinpoint

gray-brown

white

off-white

yellow

stringy

creamy

wet

chalky

	Created by Katie Koontz about 8 years ago

All about Gram Positive Cocci

Micrococcaceae

Question 1 of 26

Ingredients in Mannitol Salt Agar

Select one of the following:

Explanation

Question 2 of 26

Micrococcaceae is not ubiquitous

Select one of the following:

Explanation

Question 3 of 26

Select from the dropdown list to complete the text.

Staphylococcus aureus Micrococcus Staphylococcus saprophyticus CNS( Staphylococcus aureus, Micrococcus, Staphylococcus saprophyticus, CNS ) are the most common causes of osteomyelitis and acute bacterial endocarditis

Explanation

Question 4 of 26

Select from the dropdown list to complete the text.

Staphylococcus saprophyticus Micrococcus S. auerus CNS( Staphylococcus saprophyticus, Micrococcus, S. auerus, CNS ) is a common cause of urinary tract infection in young females

Explanation

Question 5 of 26

Select from the dropdown list to complete the text.

Common infections of CNS S. saprophyticus S. aureaus Micrococcus( CNS, S. saprophyticus, S. aureaus, Micrococcus ) include, UTI, bacterial endocarditis, infection of prosthetic joints, septicemiain immunosuppressed patients, wound infections and peritonitis.

Explanation

Question 6 of 26

Select from the dropdown list to complete the text.

food poisoning food infection CNS Micrococcus( food poisoning, food infection, CNS, Micrococcus ) is due to ingestion of of pre-formed enterotoxin in food- microorganisms do not have to be present

Explanation

Question 7 of 26

Which Micrococcaceae is catalase negative?

Select one of the following:

Explanation

Question 8 of 26

A staphaurex with a clear background a white speckles is what?

Select one of the following:

Explanation

Question 9 of 26

An organism grows on a mannitol salt agar plate and is pink. What can be said about this organism?

Select one of the following:

Explanation

Question 10 of 26

how would you interpret a bacitracin test if the organism measures at 16mm

Select one of the following:

Explanation

Question 11 of 26

Should staphylococcal food poisoning be treated with antibiotics?

Select one of the following:

Explanation

Question 12 of 26

What can be said about an organism that grows on a mannitol salt agar plate and is yellow

Select one of the following:

Explanation

Question 13 of 26

negative slide coagulase tests need to be backed up with a tube test

Select one of the following:

Explanation

Question 14 of 26

If coagulase tube test clots up and becomes a jelly like substance what is it?

Select one of the following:

Explanation

Question 15 of 26

S. aureas commonly produces beta lactamase and renders penicillin useless

Select one of the following:

Explanation

Question 16 of 26

virulence factors for s. aureus include all of the following EXCEPT:

Select one of the following:

Explanation

Question 17 of 26

Which test is used to differentiate between Staph's and Strep's?

Select one of the following:

Explanation

Question 18 of 26

What common contaminant is isolated from blood cultures?

Select one of the following:

Explanation

Question 19 of 26

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

Select one of the following:

Explanation

Question 20 of 26

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

( Staphylococcus aureus, Micrococcus, Staphylococcus saprophyticus, CNS ) are the most common causes of osteomyelitis and acute bacterial endocarditis

( Staphylococcus saprophyticus, Micrococcus, S. auerus, CNS ) is a common cause of urinary tract infection in young females

Common infections of ( CNS, S. saprophyticus, S. aureaus, Micrococcus ) include, UTI, bacterial endocarditis, infection of prosthetic joints, septicemiain immunosuppressed patients, wound infections and peritonitis.

( food poisoning, food infection, CNS, Micrococcus ) is due to ingestion of of pre-formed enterotoxin in food- microorganisms do not have to be present