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Microbiology > Exam 2 Highlights > Flashcards

Exam 2 Highlights Flashcards

1
Q

RUST SPUTUM

A

S. pneumoniae

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2
Q

SATELLITE PHENOMENON on blood agar

A

Haemophilus influenzae

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3
Q

CHINESE LETTERS APPEARANCE

A

C. diptheriae

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4
Q

CURRANT JELLY SPUTUM

A

Klebsiella pneumoniae

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5
Q

FRIED EGG APPEARANCE & MULBERRY SPUTUM

A

Mycoplasma pneumoniae

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6
Q

Obligate intracellular

A

Chlamydophilia pneumoniae

Legionella pneumophilia

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7
Q

REQUIRES COINFECTION WITH HEMOLYTIC BACTERIA

A

Haemophilus influenzae

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8
Q

Culture on buffered charcoal yeast extract

A

Legionella pneumophilia

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9
Q

PROMPTS IMMUE SYSTEM TO ABSORB THE BACTERIA

A

Legionella pneumophilia

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10
Q

“RUFF, TUFF & BUFF” in culture

A

M. tuberculosis (MTB)

becz of cording and clustering

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11
Q

terminal spores (TENNIS RACQUET)

A

C. tetani

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12
Q

subterminal heat resistant spore

A

C. botulinum

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13
Q

Need two administrations of flu vaccine

A

Kids under 9 yo

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14
Q

A/w atherosclerosis

A

chlamydiae pneumonaie

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15
Q

Novel fusion protein causes syncytia formation

A

PIV

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16
Q

Most common cause of infant croup

A

Parainfluenza type 1 and 2

17
Q

To prophylactically treat high risk pts for RSV

A

Monoclonal immune globin (Palivizumab)

18
Q

G + diplococcus
Alpha hemolytic colonies (greenish)
Optochin sensitivity

A

Strep pneumoniae (pneumococcus)

19
Q

Smallest of free-living bacteria that lack cell walls, look like fried egg in culture, have sterols in their membranes.

A

Mycoplasma pneumoniae

20
Q

Has lipooligosaccharide (LOS)) as opposed to LPS like other gram negs

A

Haemophilus influenzae

21
Q

Image that could be used on exam: long-stranded gram neg, bacillus, single polar flagellum

A

Serogroup 1 of Legionella pneumophilia

slide 20, lecture 13- bact pna II

22
Q

Gold standard of dx for Legionella pneumophilia

A

Culture on buffered charcoal yeast extract

high sens, only for serogroup 1

23
Q

Virulence factor that produces ROS and induces apoptosis

A

Pyocyanin

one of 2 pigments of pseudomonas aeroginosa along with pyoverdin

24
Q

Dead give waya of pseudomonas aeroginosa infection

A

Sputum or pus may fluoresce

“Fruity smell”

25
Q

MTB virulence factor that interferes with macrophage activation by IFN-y

A

Lipoarabinomanna

26
Q

Big difference betwn MTB and nontuberculosis mycobacteria

A

NTB is ubiquitous- found in water, soil, plants

MTB is passed person-to-person

27
Q

Most common cause of NEONATAL bacterial meningitis

A

Strep agalactiae

28
Q

Presumptive lab test for Strep agalactiae include detection of

A

CAMP factor - not used much anymore but shows up as board question

29
Q

Most common cause of bacterial meningitis in general

A

strep pneumoniae

-almost always follows s. pneumoniae pneumonia infection

30
Q

Source of E. coli neonatal meningitits

A

rectal colonization of mother’s vagina

31
Q

Virulence factor of listeria monocytogenes that disrupts the phagolysosome membrane

A

Listeriolysin O

32
Q

Leading cause of meningitis in CANCER patients

A

Listeriosis

33
Q

Potent exotoxin released by bacteria in tetanus

A

Tetanospasmin

34
Q

Most potent toxin known

A

Botulism neurotoxin

35
Q

2 forms of toxoplasma gondii

A

Trophozoites (tachyzoite acute disease, bradyzoite chronic disease)

Cysts (oocyst is sexual stage in cats, zoitocyst contains bradyzoite)

36
Q

Definitive hosts of toxoplasma gondii

A

CATS

37
Q

Trophozoite that posses SPIKED PSEUDOPODIA is a morphological form of

A

Acanthamoeba

38
Q

Produces thick capsule, stains negatively w/ india ink (stains background of medium)

A

Cryptococcus neoformans

Microbiology (6 decks)

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