Neisseria Flashcards

1
Q

Neisseria is a gram ——- bacteria that is ——— in shape

A

Negative
Cocci in shape

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2
Q

The two family of neisseria that affects humans are

A

Neisseria menningiditis
Neisseria gonorrhea

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3
Q

They exist as dipplococci and appear as ———- in appearance

A

Coffee beans

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4
Q

The serotype of N.meningiditis that has no vaccine is

A

Serotype x

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5
Q

Which of these is not a classification of neisseria

Anaerobic/ non motile / sporing
Aerobic / motile / non sporing
Aerobic /non motile /non sporing
Anaerobic/non motile/non sporing

A

C

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6
Q

Neisseria grows very well on what type of cultured medium

A

Heated blood agar
Chocolate agar

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7
Q

Neisseria is positive to what test ———-&————

A

Oxidase test and catalase test

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8
Q

Why is oxidase test used to diagnose neisseria

A

Cus neisseria produces acid from carbohydrates by oxidation

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9
Q

Oxidase test is done by pouring ———- on filter paper and oxidizing neisseria to ———- color

A

Tetramethyl-p-phenylenediamine hydrochloride turning it dark purple

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10
Q

Phenyl Enediamine hydrochloride is used to test for

A

Neisseria in oxidase test

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11
Q

Which neisseria family has polysaccharide capsule

A

N.meningiditis

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12
Q

Neisseria meningitides oxidises what sugar

A

Gluscose and maltose

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13
Q

Neisseria meningidities causes what diseases

A

Meningococcomia and meningitis

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14
Q

Meningococcaemia presents as inflammation to ——-

A

Blood vessels and other organs

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15
Q

The triad of meningitis is

A

Headache stiff neck and photophobia

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16
Q

Neisseria grows best under what temperature

A

35- 37

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17
Q

N.gonorrhea oxidizes what sugar

A

Only glucose

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18
Q

The sero group that affects Nigeria is

19
Q

Sero B of N.meningitis is commonly to what country

20
Q

Sero B,C&Y of N.meningitis is commonly to what country

21
Q

N.meningitis is transmitted by

A

Respiratory tract infection through aerosols and secretion

22
Q

Virulence factor for N.meningitis is

A

Capsule for avoiding phagocytosis
IG A protease
Lipopolysaccharide endotoxin for causing fever and shock

23
Q

The reservoir for N.meningitis is

A

Naso pharynx

24
Q

Meningococcemia is an infection of the blood and may also involve other parts of the body.

25
Meningococcemia manifests clinically as
Small vessel thrombosis nd petechiachie heamorrhage
26
Meningitis present clinically as
Photophobia stiff neck and headache
27
Drugs used for N.meningitis is
Rifampin Ciprofloxacin Ceftriaxone Minocycline
28
Kernigs sign and brundzinski sign is a sign of what infection
N. Meningococcemia
29
Kernigs sign is manifested as
When the hip is flexed but the legs cannot straighten
30
Brudunziki sign manifest as
When the neck is stiff(flex) then the hip and knee are flexed
31
Gonorrhea means
Flow of seed
32
Gonococcus affect mucous membranes of
Genitourinary tract,eyes, rectum and pharynx
33
Gonorrhea is transmitted through
Sexual intercouse
34
Meningiditis and gonococcus are readily killed by
Disinfectant Antiseptic Detergent
35
N.gonococcus does not have capsule but has ———-
Pilli for attachment to the mucosa
36
The endotoxin of N gonorrhea is
Lipooligosacharide
37
Neonates that acquire gonorrhea manifest as
Purulent conjunctivitis ( opthalmia neonatrum)
38
Gonorrhea in men manifest as
Acute urethritis to dysuria - Purulent discharge May progress to epidymisis infection Then become chronic urethritis which can cause perineum infection(water can perineum) causing abscess in the perineum
39
In women gonorrhea present as
Endocervix infection + saplingities+ cervical bleeding + Fallopian tube obstruction
40
Other manifestation of mennigococcemia is
Arthritis Brunziki sign Kegnig sign Lower respiratory tract infection-pneumonia Upper respiratory tract infection- otitis and epiglottitis Interstitial myocarditis
41
In gonorrhea women are asymptomatic but men are symptomatic
42
How to treat gonorrhea is
Silver nitrate solution Gentamicin eye drop Ceftriaxone Azithromycin
43
Drug used to treat N.meningitides is
Penicillin G Ciproflaxin Preventioon Rifampin Ceftriaxone