8 - Gram Negative Cocci

a. Red

Gram (-) Cocci
a. Red
b. Blue
c. Purple
d. Pink

b. Meningococcus

[General Properties]

The common name for N. meningitidis is:

a. Gonococcus

b. Meningococcus

c. Moraxella

d. Catarrhalis

b. Gonococcus

[General Properties]

The common name for N. gonorrhoeae is:
a. Meningococcus
b. Gonococcus
c. Moraxella
d. Catarrhalis

b. Moraxella catarrhalis

[General Properties]

Causative agent of pneumonia

a. Neisseria gonorrhoeae

b. Moraxella catarrhalis

c. Neisseria meningitidis

d. Neisseria lactamica

b. Moraxella catarrhalis

[General Properties]

N. catarrhalis has a new name. What is it?
a. Branhamella catarrhalis
b. Moraxella catarrhalis
c. Neisseria moraxella
d. Moraxella osloensis

c. Neisseria meningitidis

[General Properties]

Which of the following is a Gram-negative coccus?
a. Staphylococcus aureus
b. Streptococcus pneumoniae
c. Neisseria meningitidis
d. Enterococcus faecalis

b. Neisseria spp.

[General Properties]

Which of the following is the only medically important Gram-negative coccus?

a. Moraxella spp.

b. Neisseria spp.

c. Acinetobacter spp.

d. Haemophilus spp.

• Carbohydrate (CHO) fermentation

• Oxidase (+)

• Capnophile

• Culture on Thayer-Martin agar

• Identified by Kidney bean-shaped diplococci

📌Mnemonic: “COCCI”

[General Properties]

General Properties of Gram negative Cocci [5]

b. Oxidase (+)

[General Properties]

Neisseria species are:

a. Oxidase (-)
b. Oxidase (+)
c. Catalase (+)
d. Urease (+)

a. Capnophiles

[General Properties]

Neisseria species are:

a. Capnophiles
b. Anaerobes
c. Aerobes
d. Microaerophiles

c. Thayer-Martin agar

[General Properties]

The culture medium for Neisseria species is:

a. Blood agar
b. Chocolate agar
c. Thayer-Martin agar
d. MacConkey agar

a. Kidney bean-shaped diplococci

[General Properties]

Neisseria species are identified by:

a. Kidney bean-shaped diplococci
b. Rod-shaped
c. Spiral-shaped
d. Cocci in chains

a. Complement deficiency

[General Properties]

Risk factor for Neisseria infection is:

a. Complement deficiency
b. Leukopenia
c. Anemia
d. Thrombocytopenia

c. Neisseria

[General Properties]

Complement deficiency leads to an increased risk of infection with:

a. Staphylococcus
b. Streptococcus
c. Neisseria
d. E. coli

a. C3a

[General Properties]

Responsible for anaphylaxis

a. C3a

b. C3b

c. C5 - C9

b. C3b

[General Properties]

Responsible for binding immunoglobulin and neutrophil

a. C3a

b. C3b

c. C5 - C9

c. C5 - C9

[General Properties]

Forms Membrane attack complex (MAC)

a. C3a

b. C3b

c. C5 - C9

a. True

[General Properties]

BEQ: A deficiency in C5–C9 leads to:

• DECREASED Membrane attack complex (MAC)

• INCREASED risk of infection with Neisseria species

a. True

b. False

a. N. meningitidis

[Neisseria Species]

Identified by capsule "sugar coat" glycocalyx and pili.

a. N. meningitidis
b. N. gonorrhoeae
c. Streptococcus pneumoniae
d. Haemophilus influenzae

a. Droplet

[Neisseria Species]

Route of transmission (ROT) for N. meningitidis is:

a. Droplet

b. Foodborne

c. Bloodborne

d. Sexual contact

d. Both a and b

• Meningitis

• Meningococcemia

[Neisseria Species]

N. meningitidis causes:

a. Meningitis

b. Meningococcemia

c. Pneumonia

d. Both a and b

• Purpura fulminans

• Digital necrosis

[Neisseria Species]

Meningococcemia is characterized by:

a. Purpura fulminans and digital necrosis
b. Petechiae only
c. Erythema multiforme
d. Vesicular rash

• Ceftriaxone

• Penicillin G

📌NOTE: basta Neisseria = ceft

[Neisseria Species]

Treatment for N. meningitidis is:

a. Ceftriaxone and Penicillin G

b. Vancomycin

c. Ciprofloxacin

d. Erythromycin

a. MCV (Meningococcal Conjugate Vaccine)

[Neisseria Species]

Prevention of N. meningitidis includes:

a. MCV (Meningococcal Conjugate Vaccine)
b. MMR (Measles, Mumps, Rubella)
c. DPT (Diphtheria, Pertussis, Tetanus)
d. OPV (Oral Polio Vaccine)

• Pili

• IgA protease

• Capsule

• Endotoxin

📌Mnemonic: “P ICE”

[Neisseria Species]

N. gonorrhoeae is identified by:

a. Pili, IgA protease, Capsule, Endotoxin
b. Flagella, Capsule, Exotoxin
c. Pili, Exotoxin, Capsule
d. IgA protease, Flagella, Endotoxin

b. Sexual (any form, even no orgasm)

[Neisseria Species]

Route of transmission (ROT) for N. gonorrhoeae is:

a. Droplet

b. Sexual

c. Foodborne

d. Bloodborne

a. Purulent discharge (Nana)

[Neisseria Species]

Gonorrhea is characterized by:

a. Purulent discharge

b. Clear discharge

c. Bloody discharge

d. Watery discharge

b. Clear discharge

[Neisseria Species]

Chlamydia is characterized by:

a. Purulent discharge
b. Clear discharge
c. Bloody discharge
d. Watery discharge

a. Ceftriaxone (for Neisseria) + Azithromycin and Doxycycline (because it's uncertain if there is also chlamydia)

[Neisseria Species]

Treatment for gonorrhea includes:

a. Ceftriaxone + Azithromycin and Doxycycline
b. Penicillin only
c. Ciprofloxacin
d. Vancomycin

b. Reinfection can occur (pede pa maulit)

[Neisseria Species]

There is no immunity for gonorrhea, meaning:

a. One infection provides lifelong immunity

b. Reinfection can occur

c. Vaccine is available

d. Infection is self-limiting

• Fever

• Arthralgia

[Neisseria Species]

Gonococcal septic arthritis presents with:

a. Fever and arthralgia

b. Only joint swelling

c. Only fever

d. Rash and fever

a. Gonorrhea

[Neisseria Species]

A male high school student basketball player with fever and joint pain is likely:

a. Gonorrhea
b. S. aureus
c. Chlamydia
d. Syphilis

b. S. aureus

[Neisseria Species]

A male high school student basketball player with fever and joint pain, but no sexual history, is likely:

a. Gonorrhea
b. S. aureus
c. Chlamydia
d. Syphilis

a. Ceftriaxone

[Neisseria Species]

Treatment for gonococcal septic arthritis is:

a. Ceftriaxone
b. Penicillin
c. Ciprofloxacin
d. Vancomycin

b. Ophthalmia neonatorum gonorrhea

[Neisseria Species]

Route of transmission (ROT) for N. gonorrhoeae via direct passage through the vagina causes:

a. Pneumonia
b. Ophthalmia neonatorum gonorrhea
c. Meningitis
d. Septicemia

c. Ceftriaxone

[Neisseria Species]

Treatment for ophthalmia neonatorum gonorrhea (if the neonate gets sick) is:

a. Silver nitrate
b. Erythromycin ointment
c. Ceftriaxone
d. Penicillin

• Silver nitrate

• Erythromycin ointment

[Neisseria Species]

Prophylaxis for ophthalmia neonatorum gonorrhea includes:

a. Silver nitrate and Erythromycin ointment
b. Ceftriaxone
c. Penicillin
d. Ciprofloxacin