Microbiology: Bacteriology Flashcards

1
Q

Which staphylococci are novobiocin sensitive?

A

NO StRES

Novobiocin
Saprophyticus - Resistant
Epidermidis - Sensitive

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2
Q

Which streptococci are bacitracin sensitive?

A

B-BRAS

Bacitracin
Group B - Resistant
Group A - Sensitive

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3
Q

Jones Criteria for Acute Rheumatic Fever (Major)

A

Si Jones may PECCS

Polyarthritis
Erythema marginatum
Chorea (Syndenham)
Carditis (pancarditis)
Subcutaneous nodules
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4
Q

Optochin sensitive Streptococci

A

OVeRPaSs

Optochin
Viridans -Resistant
Pneumoniae - Sensitive

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5
Q

What is the Quellung reaction?

A

Swelling of the S. pneumo capsule

Quellung = Swellung

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6
Q

Enumerate the Encapsulated Bacteria

A

Some Killers Have Pretty Nice and Shiny Bodies

S. pneumoniae
K. pneumoniae
H. influenzae
P. aeruginosa
N. meningitidis
S. typhi
B Group Streptococci
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7
Q

Which streptococci are bile and optochin resistant?

A

Viridans (S. mutans and S. sanguis) streptococci live in the mouth because they are NOT AFRAID OF THE CHIN (op-to-chin)

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8
Q

Triad of Botulism

A
  1. Symmetric descending flaccid paralysis (with prominent bulbar involvement)
  2. Absence of fever
  3. Intact sensorium
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9
Q

The typical progression of symptoms (in order of appearance) in a botulinum neurotoxin poisoning patient

A

Dozen D’s

Dry mouth
Diplopia
Dilated pupils
Droopy eyes
Droopy face
Diminished gag reflex
Dysphagia
Dysarthria
Dysphonia
Difficulty lifting the head
Descending paralysis
Diaphragmatic paralysis
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10
Q

Clostridium species and their diseases

A

C. TETani = Tetanic paralysis
C. BOTulinum = Botulism from bad BOTtles of food
C. PERFringens = PERForates a gangrenous leg (gas gangrene)
C. DIfficile = DIarrhea

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11
Q

ABCDEFG of Diphtheria

A
ADP-ribosylation
Beta-prophage
Corynebacterium
Diphtheriae
Elongation factor-2
Granules (metachromatic)
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12
Q

ABCDE of Beta-Prophage encoded toxins of C. diphtheriae

A
ShigA-like toxins (EHEC)
Botulinum toxin
Cholera toxin
Diphtheria toxin
Erythrogenic toxin (S. pyogenes)
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13
Q

Gram negative cocci differentiation

A

Neisseria MeninGitidis
ferments both Maltose and Glucose

Neisseria GOnorrheae
ferments Glucose Only

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14
Q

Human bite infections and culture-negative subacute bacterial endocarditis in patients with pre-existing heart disease

A

HACEK Organisms

nagha-HACEK ng lagim sa may mga sakit sa puso

Haemophilus aphrophilus
Actinobacillus actinomycetecomitans
Cardiobacterium hominis
Eikenella corrodens
Kingella kingae
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15
Q

Compare epiglottitis with laryngotracheobronchitis
Etiology
Radiographic sign
Treatment

A

HiB
thumb sign
Ceftriaxone

Parainfluenza 1 & 2
steeple sign
Aerosolized racemic epinephrine

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16
Q

H. influenzae causes

A

HaEMOPhilus influenzae causes

Epiglottitis
Meningitis
Otitis media
Pneumonia

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17
Q

Facultative Intracellular Bacteria

A
Some Bugs May Live FactultativeLY
Salmonella
Brucella
Mycobacterium
Listeria
Francisella
Legionella
Yersinia
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18
Q

Top 3 bacterial causes of neonatal meningitis

A

BEL has neonatal meningitis

  1. B Group streptococci (S. agalactiae)
  2. E. coli* (most common cause of community-acquired UTI)
  3. L. monocytogenes

*Globally, but in the Philippines, E. coli is the most common cause. Assume global unless otherwise stated.

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19
Q

Grown on Eosin Methylene Blue (EMB) agar

A

E. coli

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20
Q

Lactose Fermenters

A
LaCtose is KEE. Grown in MacConKEE agar.
Citrobacter
Klebsiella
Escherichia coli 
Enterobacter
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21
Q

Enumerate Enterobacteriaceae

A

Think MESSY SPECK

Morganella
Escherichia
Shigella
Salmonella
Yersinia
Serratia
Proteus
Enterobacter
Citrobacter
Klebsiella
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22
Q

Characteristics of Enterobacteria

A

Enterobacteria drink COFFEe!

Capsular antigen (K)
O antigen (Lipopolysaccharide)
Flagellar antigen (H)
Ferments glucose
Enterobacteriaceae
23
Q

Components of E.coli HUS

A

EHEC

Hemolytic anemia
Uremia
Thrombocytopenia

24
Q

Intestinal infections of E. coli and their respective strains

A

Enterotoxigenic - ETEC - Traveller’s diarrhea
Enteropathogenic - EPEC - Pediatric, Philippines (developing countries)
Enterohemorrhagic - EHEC/STEC - HUS (Serotype O157:H7)
Enteroinvasive - EIEC - Invasive, also bloody diarrhea like EHEC
Enteroadherent - EAEC - AIDS

25
Q

Osteomyelitis in specific conditions are caused by which organisms?
Burns
IVDA
SCA

A

Burns - P. aeruginosa
IV drug abusers - S. aureus, P. aeruginosa
Sickle cell anemia - Salmonella choleraesuis

26
Q

Shigella transmission

A
4Fs
Food
Fingers
Feces
Flies
27
Q

Only thing that grows on Skirrow’s agar, most common cause of bacterial gastroenteritis

A

C. jejuni

28
Q

What are the symptoms of C. jejuni-induced reactive arthritis?

A

Reiter’s syndrome
Can’t pee - urethritis
Can’t see - uveitis
Can’t climb a tree - arthritis

Also seen in C. trachomatis infection

29
Q

What kind of bacteria is P. aeruginosa?

A

Pseudomonas AERuginosa is an obligate AERobe.

30
Q

Most common causes of nosocomial UTIs

A
  1. P. aeruginosa
31
Q

Common zoonoses and their respective animal reservoirs

A

Bugs From Your Pets

Brucella abortus - Bruce the cow
Francisella tularensis - Francis the rabbit
Yersinia pestis - Yeye the rat
Pasteurella multocida - Papa the cat

32
Q

Characteristics of Brucellosis

A

Unpasteurized dairy products give you Undulating fever.

33
Q

Most virulent bacteria

A

Yersinia pestis

Causes bubonic, pulmonic and septicemic plague

34
Q

More dangerous form of leprosy

A

LEpromatous leprosy is LEthal.

35
Q

Antibiotics for Actinomycetes

A

SNAP

Sulfa for Nocardia, for Actinomyces, use Penicillin.

36
Q

Smallest free-living organism

A

Mycoplasma pneumoniae

37
Q

Causes painful genital chancroid

A

H. ducreyi

In chancroid, you ducreyi in pain!

38
Q

Prostitute’s pupil

A

T. pallidum, tertiary syphilis
Argyll-Robertson pupil
Accommodation reflex present
Pupillary reflex absent

39
Q

FTA-ABS characteristics

A

Find the Antibody - ABSolutely

Most specific for T. pallidum
Earliest positive test
Remains positive the longest

40
Q

Causes of False Positive VDRL Results

A

V-D-R-L

Viruses - EBV and Hepatitis
Drugs - marijuana
Rheumatic fever, Rheumatoid arthritis
Lupus, Leprosy

41
Q

Influenza-like symptoms that occurs just hours after initiation of starting therapy for spirochetes

A

Jarisch-Herxheimer Reaction

Lysis of treponemes or leptospira after initiation of therapy

42
Q

Largest medically important bacteria

A

B. burgdorferi

43
Q

Lyme disease SSx

A

BAKE a key Lyme pie.

Bell palsy
Arthritis
Kardiac block
Erythema chronicum migrans

44
Q

What are the obligate intracellular bacteria?

A

They stay inside when it is Really Cold

Rickettsiae
Chlamydia

45
Q

Forms of Chlamydia

A

Elementary body = Enfectious, Enters cell via Endocytosis

Reticulate body = Replicates in cell by fission

46
Q

Most common STD

A

Chlamydia

47
Q

Trachoma characteristics

A

Trachoma Types ABC
Africa
Blindness
Chronic infection

48
Q

What causes pneumonia with accelerated atherosclerosis?

A

Chlamydia pneumoniae

49
Q

Treatment of chlamydia species

A

C. trachomatis types D-K
STD - Azithromycin
Conjunctivitis - Erythromycin

C. trachomatis types L1-L3
Lymphogranuloma venereum - Doxycycline

C. psittaci
Psittacosis - Azithromycin

50
Q

2 most important Rickettsiae

A

Rickettsia rickettsii - Rocky Mountain Spotted Fever (10-25% mortality)

Coxiella burnetti - Q fever (65% mortality)

51
Q

Bartonella henselae causes

A

Cat-scratch fever in immunocompetent

Bacillary angiomatosis in immunocompromised

52
Q

Causes mesenteric adenitis (pseudoappendicitis)

A

Yersinia enterocolitica

53
Q

Causes granuloma inguinale (Donovanosis), also forms pseudobuboes

A

Klebsiella granulomatis

54
Q

Clue cells, positive whiff test

A

Gardnerella vaginalis (causes bacterial vaginosis)