2.1.1 DISCUSSION Flashcards
What are the 3 Genera’s of Micrococcaceae
Planococcus
Stomatoccus
Micrococcus
What are the bacteria tat are encapsulated?
S. pneumoniae
Klebsiella pneumoniae
B. anthracis
What bacteria is the causative agent for pseudomonas membranous colitis?
Clostridium difficile
Most common enterotoxin that causes food poisoning?
Enterotoxin A
Exfoliative toxin is also known as?
Epidermolytic toxin A and B
What part of the epidermidis affected specifically by Epidermolytic toxin?
Stratum granulosum
It causes a mild inflammation of the hair follicle or sebaceous gland
Folliculitis
Are Large, raised, superficial abscesses which can be an extension of folliculitis
Furuncles
Develop from multiple furuncles which may advance into the deeper tissues and cause fever and chills leading to systemic infection
Carbuncles
Is a contagious superficial infection commonly seen in the children and characterized by crusty lesion and vesicles surrounded by a red border
Staphylococcal impetigo
Is an extensive exfoliative dermatitis that occurs primarily in newborn and previously healthy children
SSS or Ritter disease
Is rare but potentially fatal, multiple organ system illness that is characterized by a sudden onset of high fever, chills, vomiting, muscle aches, ad rashes, desquamation and it rapidly progresses to hypotension and shock
Toxic shock syndrome
Carbuncle and furuncle are cause by what enzyme?
Lipase
What are the other species or opportunistic species of Staphylococcus?
warneri
capitis
simulans
hominis
schleiferi
What antibiotic are resistant to MRSA?
Methicillin
Nafcillin
Oxacillin
B-lactam drugs
Cephalosporin
Carbapenem
What is the function of beta-lactamase?
hydrolyzes beta lactam of penicillin to make it inactive
What is the function of protein A?
Binds to Fc of IgG, affecting phagocytosis
What is the component of S. aureus on its gold pigment in BAP?
Staphyloxanthin
What is the function of Cefoxitin?
Induce PBP2a
What is the reagent used in Microdase test?
Tetramethyl-p-phenylenediamine in dimethyl sulfoxide
What is phenol red in Mannitol salt agar used for?
pH indicator
In D test, how many mm should erythromycin and clindomycin should be apart?
15-22mm
In Cefoxitin disk, how many mm should have mecA positive?
<21 mm
In Cefoxitin disk, how many mm should have mecA Negative?
22 mm
What are the 2 antibiotics a that are Susceptible to S. aureus
Furazolidone
Lysostaphin
What does PYR detect in a bacteria?
Pyrrolidonyl arylamidase enzyme
What is the general temp for bacteria
How many hours to for culture and identification?
Temp = 35-37 C
Culture = 18-24 hrs
identification = 16-18 hrs
