P1 MICROBIOLOGY Flashcards
Staphylococcus aureus
genus of staph aureus
cocci in clusters
staph auras gram stain
gram +
staph aureus catalase test results
catalase positive
staph aureus coagulase test results
coagulase +
Identify the test
E test
Identify the MIC
the arrow : 0.25
border of zone of inhibition touches the strip
the minimum concentration of the antibiotic which inhibits the visible growth of the organism is known as
Minimum inhibitory concentration / MIC
Identify the test
kirby- bauer disk diffusion susceptibility test
the KB test is done to test
the effectiveness of antibiotics on specific microorganism
Identify the test & its importance
DNase test
to determine an organism’s ability to hydrolyze DNA
Identify the organism & describe the colony
S. Epidermidis: white,
non-hemolytic colonies
Identify the organism & describe the colony
staph aureus
golden Yellow beta haemolytic
Identify & describe the shown Microscopic gram stained smear
gram + cocci in cluster of staphylococcus
Identify & describe the shown Microscopic gram stained smear
gram + cocci in chains of streptococcus
Identify the organism seen in the yellow colonies
staph aureus
identify the organism seen in the yellow colonies
Staphylococcus epidermis
Identify the agar & its significance
mannitol salt agar
selective medium for recovering S.aureus from faecal specimens, when investigating food poisoning
Identify the agar
Nutrient agar
Staphylococcal Food Poisoning is commonly due to
SEA
SEC
SEB
s aureus can cause toxic shock syndrome by
TSST / toxic shock syndrome toxin
which disease is shown
SSSS / staphylococcal scalded skin syndrome
ritter’s disease
a case of
Impetigo
Identify the shown cutaneous infection
Furuncle / boil
this case originates from what cutaneous infection
from folliculitis
Identify the shown cutaneous infection
carbuncle
this shown cutaneous infection is an aggregation of
furuncle
Identify the shown cutaneous infection
sty
define a sty
a folliculitis affecting 1 or more hair follicles on the edge of upper/lower eyelid
inflammation of hair follicles is known as
Folliculitis
mention the 4 modes of transmission of staph aureus
1- person with lesion
2- asymptomatic carrier
3- cross- infection
4- airborne droplets
what virulence factor kills WBCs by producing holes in their cell membrane
Leucocidin (Panton- Valentine factor)
toxin responsible for SSSS / Ritters disease
Exfoliatin toxin
what CONS pathogen causes endocarditis
Staphylococcus epidermidis
what CONS pathogen causes UTIs
Staphylococcus saprophyticus
Identify the organism in golden yellow pigmented colonies
S . Aureus
Identify the organism in lemon yellow pigmented colonies
S. citrus
Identify the organism in white pigmented colonies
S . albus
