GRAM NEGATIVE COCCI Flashcards

1
Q

GRAM NEGATIVE DIPLOCOCCI resembling COFFEE BEANS/KIDNEY BEANS
NON-MOTILE, OBLIGATE ANAEROBES
CAPNOPHILIC
CATALASE +
OXIDASE +

A

Neisseria

Note:
Catalase- , rod-shaped : N.elongata

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2
Q

Asymptomatic more common in Females
#2 leading cause of STD
GENITAL INFECTIONS:
Urethritis: Male
Cervicitis: Female

Other Localized infections:
Pharyngitis, anorectal infections, Conjunctivitis

Virulence:
Pili: for attachment
IgA protease

A

N. gonorrhoeae

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3
Q

Causes OPTHALMIA NEONATORIUM of Newborns
Causes:
Pelvic inflammatory disease/disseminated gonococcal infection includes BACTEREMIA, ARTHRITIS, METASTATIC INFECTIONS

A

N.gonorrhoeae

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4
Q

POLYSACCHARIDE CAPSULES:
A: PANDEMICS
B: COMMUNITY ACQUIRED = common cause of Meningitidis
Y: (PNEUMONIA), W35 (INVASIVE DISEASE)

Common in ADOLESCENT/YOUNG ADULT
LIFE-THREATENING, ACUTE, PURULENT MENINGITIS

A

N.meningitidis

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5
Q

Meningitidis may be accompanied by appearance of Petichiae (rash) that is associated with Meningococcal bacteremia (meningococcemia)

Bacteremia leads to:
THROMBOCYTOPENIA
DIC
SHOCK

A

N.meningitidis

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6
Q

Hemorrhage in Adrenal Gland

Treatment: Ceftriaxone

A

Waterhouse- Friderichsen Syndrome

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7
Q

Previous names:
Branhamella catarrhalis
Neisseria catarrhalis

A

Moraxella catarrhalis

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8
Q

Common cause of OTITIS MEDIA

Most Infections are localized assosciated with Respiratory tract and includes SINUSITIS AND PNEUMONIA

LOWER RESPIRATORY TRACT INFECTIONS targets the ELDERLY PATIENTS

A

M. catarrhalis

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9
Q

BAP +
CAP +
TMA+

A

N.meningitidis

Note: 35°c in a 3% to 5% CO2 atmosphere in 3 days/72hrs.

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10
Q

BAP -
CAP+
TMA+

A

N.gonorrhoeae

Note: 35°c in a 3% to 5% CO2 atmosphere in 3 days/72hrs.

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11
Q

BAP+
CAP+
TMA-

A

Moraxella

Note: 35°c in a 3% to 5% CO2 atmosphere in 3 days/72hrs.

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12
Q

Small, Grayish White, Convex, TRANSLUCENT, Shinny Colonies with either Smooth/irregular margins

A

N.gonorrhoeae

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13
Q

Medium, Smooth, round, moist, Gray to White; ENCAPSULATED strains are MUCOID

GREENISH CAST IN agar underneath colonies

A

N. meningitidis

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14
Q

CLAY-LIKE Consistency, Smooth, Glistening
Catalase -
Elongated rod shaped

A

N. elongata

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15
Q

friable “HOCKEY PUCK”
colony may be MOVED INTACT OVER SURFACE AGAR

A

M.catarrhalis

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16
Q

Oxidase Test (Taxo N) : Positive (purple)

A

Neisseria and Moraxella

17
Q

Superoxol test (30%) H2O2: VIGOROUS BUBBLING

A

N.gonorrhoeae

18
Q

Superoxol test (30%) H2O2: WEAK DELAYED BUBBLING

A

N. meningitidis and N. lactamica

19
Q

GLUCOSE: -
MALTOSE: -
SUCROSE: -
LACTOSE: -

A

Moraxella catarrhalis

Note:
ASACCHAROLYTIC:
“hindi sweet si jason AMOA”

A- Acinetobacter iwoffi
M- Moraxella
O- Oligella
A- Alcaligenes

20
Q

GLUCOSE: +
MALTOSE: -
SUCROSE: -
LACTOSE: -

A

N. gonorrhoeae

21
Q

GLUCOSE: +
MALTOSE: +
SUCROSE: -
LACTOSE: -

A

N. meningitidis

22
Q

GLUCOSE: +
MALTOSE: +
SUCROSE: +/-
LACTOSE: -

A

N. subflava

23
Q

GLUCOSE: +
MALTOSE: +
SUCROSE: -
LACTOSE: +

A

N. lactamica

24
Q

Note: SELECTIVE MEDIA FOR N.GONORRHEA

Thayer Martin
Modified Thayer Martin (MTM)
Martin Lewis
GC-LECT
New York City Agar

A
25
Q

Acid Production characterized by YELLOW color Produced in 24-72 hrs.

A

Cystine trypticase agar (CTA)

26
Q

Detects Enzyme that Hydrolizes colorless substrates and colored end products

A

Chromogenic Substrates

27
Q

Hybridization, NAAT, MALDI-TOF

A

molecular assays

28
Q

specimen for NAAT of N. gonorrhea and Chlamydia

A

Urethral Specimen; Urine (male/female)

29
Q

Require specific nutritional factor in artificial media for growth to occur

A

Auxotypes

30
Q

Requires arginine, uracil, hypoxanthine
Cause asymptomatic urethral infection in Males

A

AHU Strains

31
Q

Rapid detection of Carbohydrate utilization and production of DNAse and beta lactamase

A

Multitest conventional (QuadFERM)

32
Q

BACILLI
AEROBIC
OXIDIZER
CPON: CATALASE +
OXIDASE -

A. Acinetobacter
B. Capnocytophaga
C. Neisseria
D. Mycoplasma, Ureaplasma
E. Kingella

A

A. Acinetobacter

33
Q

DIPLOCOCCI
FERMENTER
CAPNOPHILIC
NON-MOTILE
CPOP: CATALASE +
OXIDASE +

A. Acinetobacter
B. Capnocytophaga
C. Neisseria
D. Mycoplasma, Ureaplasma
E. Kingella

A

C. Neisseria

34
Q

FUSIFORM SHAPE
GLIDING MOTILITY
CATALASE -

A. Acinetobacter
B. Capnocytophaga
C. Neisseria
D. Mycoplasma, Ureaplasma
E. Kingella

A

B. Capnocytophaga

35
Q

SQUARE- ENDED ROD
TWITCHING MOTILITY
CATALASE -

A. Acinetobacter
B.Capnocytophaga
C. Neisseria
D. Mycoplasma, Ureaplasma
E. Kingella

A

E. Kingella

36
Q

GROW ON NYC AGAR
CELL WALL; LESS PELOMORPHIC

A. Acinetobacter
B.Capnocytophaga
C. Neisseria
D. Mycoplasma, Ureaplasma
E. Kingella

A

D. Mycoplasma, Ureaplasma