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FINAL BACTERIOLOGY > Rodriguez: Gram (-) cocci > Flashcards

Rodriguez: Gram (-) cocci Flashcards

1
Q

-gram negative DIPLOCOCCI
-COFFEE or KIDNEY BEAN shaped
-convex, glistening

A

neisseria

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2
Q

neisseria are non pigmented except for

A

n. flava, n. flavescens, n. subflava

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3
Q

all neisseria are
oxidase +
catalase + except

A

n. elongata

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4
Q

-sensitive to drying, direct inoculation at bed side is required
-carbohydrate ferments: glucose and maltose

A

neisseria

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5
Q

-never a normal flora
-man only known host
-spread through sexual contact
-mother to newborn
-LEADING CAUSE OF SEXUALLY TRANSMITTED DISEASE
-produce IgA protease
-has common pili

A

Neisseria gonorrheae/ gonococci

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6
Q

an important pathogenesis of both n. gonorrheae and n. meningitidis

A

IgA protease

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7
Q

N. gonorrheae

T1 and T2

A

virulent

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8
Q

N. gonorrheae

T3-T5

A

avirulent

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9
Q

rare isolates of n. gonorrheae that are isolated from asymptomatic men

A

auxotypes

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10
Q

-flow of seed
-brothel
-acute pyogenic infection 2-7 days incubation
-symptom: purulent discharge

A

gonorrhea

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11
Q

untreated gonococcal cervicitis may cause sterility and peri hepatitis known as

A

Fitz-Hugh-Curtis sydrome

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12
Q

CA
purulent urethritis- males
cervicitis- females

A

n. gonorrheae

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13
Q

the chief complain in symptomatic oropharyngeal infections

A

pharyngitis- n. gonorrheae

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14
Q

also known as rectal gonorrhea causing rectal pain and bloody stools

A

anorectal infections, n. gonorrheae

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15
Q

a gonococcal eye infection during vaginal delivery

A

conjunctivitis/ophthalmia neonatorum

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16
Q

for collection of n. gonorrheae specimens

A

dacron/ rayon swabs

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17
Q

transport medium for swabs of n. gonorrheae

A

amies medium with charcoal

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18
Q

> 5PMNS/field but no bacteria

A

non gonococcal urethritis

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19
Q

non gonococcal urethritis caused by

A

C. trachomatis

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20
Q

swab of n. gonorrheae should be inoculated onto media in a – pattern

A

z pattern, cross streaked

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21
Q

best method for culture and transport should contain CO2 of n. gonorrheae

bottle or chamber containing CO2

A

candle jar

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22
Q

best method for culture and transport should contain CO2 of n. gonorrheae

citric acid-bicarbonate tablet

A

JEMBEC

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23
Q

for n. gonorrheae

antimicrobial agents: vancomycin
colistin
nystatin

A

thayer martin agar/ TMA

24
Q

for n. gonorrheae

antimicrobial agents:
vancomycin
colistin
nystatin
trimethroprim lactate

A

modified thayer martin agar/ MTM

25
Q

for n. gonorrheae

antimicrobial agents:
vancomycin
colistin
anisomycin
trimethrophrim lactate

A

martin lewis medium/ ML

26
Q

for n. gonorrheae

antimicrobial agents:
vancomycin
colistin
trimethrophrim lactate
amphotecirin B

A

new york city medium/ NYC

27
Q

has an advantage of detecting genital mycoplasma

A

new york city medium/ NYC

28
Q

for n. gonorrheae

antimicrobial agents:
vancomycin
colistin
trimethrophrim lactate
amphotecirin B
lincomycin

A

GC- LECT medium

29
Q

transgrow
cary-blair
amies
JEMBEC

A

transport medium
n. gonorrheae

30
Q

-standard method of identifying n. gonorrheae
-detects producion from glucose, maltose, lactose, fructose, sucrose

A

CHO utilization test

31
Q

DNAse test in gram - cocci
m.catarrhalis

A

+

32
Q

DNAse test in gram - cocci
n. gonorrheae

A

-

33
Q

highly specific and sensitive, confirms morphologic appearance of bacteria

A

fluorescent antibody test (FAT)

34
Q

confirms biochemical identification

A

coagglutination

35
Q

suitable for screening many patients for n. gonorrheae

A

molecular assays

36
Q

used for culture confirmation or direct detection in swab specimens

direct detection of gonococcal ribosomal RNA

A

chemiluminescent nucleic acid probe

37
Q

-causative agent of epidemic meningococcal meningitis/meningococcemia/cerebrospinal fever/ SPOTTED FEVER

A

neisseria meningitidis/ meningococci

38
Q

-encapsulated with HALO
-blusih gray colonies
-produce IgA protease

A

n. meningitidis/ meningococci

39
Q

presence of n. meningitidis in the blood and can occur as an acute or chronic form

symptom: stiff neck

A

meningococcemia

40
Q

may develop during bacteremic spread due to release of endotoxin

A

petechial skin lesions

41
Q

activates the clotting cascade producing waterhouse-friderichsen

A

LOS-endotoxin

42
Q

hemorrhage in the adrenals caused by n. meningitidis

A

waterhouse-friderichsen syndrome

43
Q

individuals with deficiency in complement – are at risk of meningococcemia

A

C5-C8

44
Q

drug of choice for treatment of meningococcal meningitis

A

penicillin G

45
Q

resembles N. meningitidis on gonococcal selective media

A

neisseria lactamica

46
Q

-similar to T3 colonies of n. gonorrhea on CAP

A

n. cinerea

47
Q

will differentiate n. cinerea from n. gonorrheae

A

colistin susceptibility

48
Q

yellow pigmented neisseri, assacharolytic

A

n. flavescens

49
Q

most commonly found in nasopharynx of infants and children’s 2 years of age
neisseria

A

n. lactimica

50
Q

large, very mucoid colonies seen in nasopharynx of children and young adults

also from airways of dolphin

neisseria

A

n. mucosa

51
Q

dry wrinkled breadcrumbs like colonies

neisseria

A

n. sicca

52
Q

rod shaped
weakly positive or negative catalase test

neisseria

A

n. elongata

53
Q

rod shaped
normal oral microbiota in dogs

A

n. weaveri

54
Q

specie that resembles neisseria by exhibiting gram negative coccal morphology

A

m. catarrhalis aka. branhamella catarrhalis

55
Q

-3rd most common cause of otitis media and sinusitis in children
-adjacent sides are flattened
-HOCKEY PUCK appearance

A

moraxella catarrhalis aka. branhamella catarrhalis

FINAL BACTERIOLOGY (7 decks)

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