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Microbiology pathology Flashcards

1
Q

Gram positive bacteria stain

A

Thicker cell walls - darker stain

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2
Q

Dark field stain

A

Syphilis

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3
Q

Giemsa stain

A

Chlamydia

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4
Q

Acid-fast stain

A

TB

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5
Q

Staph aureus virulence

A

Protein A - inhibits phagocytosis

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6
Q

Most common organism to cause infected heart valves

A

Staph epidermis

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7
Q

2nd most common organism causing UTI in women

A

Staph saprophyticus

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8
Q

Cancer associated with strep bovis

A

Colorectal cancer

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9
Q

Where is Neisseria Meningitidis most commonly found?

A

Nasal cavity

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10
Q

Exostosis

A

Cold water swimmer
Unable to visualise tympanic membrane

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11
Q

Pseudomonas aeruginosa

A

Swimmers ear
Cipro drops

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12
Q

Most common organism in otitis media

A

Strep pneumoniae

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13
Q

Actinomyces

A

Bacteria
Yellow - sulphur

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14
Q

Bacillus cereus gastroenteritis

A

Rice
30 mins
Exotoxin

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15
Q

Staph aureus gastroenteritis

A

Garden party, salad
3 hrs

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16
Q

Salmonella enterica

A

Eggs and meat
6 hrs

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17
Q

Causes of watery diarrhoea

A
  • C. Difficile
  • C. Perfringens
  • E.coli
  • Rota/Norovirus
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18
Q

Causes of bloody diarrhoea

A
  • Salmonella (motile)
  • Campylobacter (meat)
  • Entamoeba Histolytica
  • E.coli
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19
Q

C Perfringes

A

Undercooked meat
< 2 days

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20
Q

C botulinum

A

Canned food
< 2 days

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21
Q

C diff

A

Abe
> 2 days

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22
Q

Campylobacter

A

Spiral shaped
Undercooked meat
> 2 days

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23
Q

Treatment of amoebic dysentry

A

Mebendazole

24
Q

Most common STI < 35 yo

25
Q

Most common STI > 35 yo

A

Gonorrhoea

26
Q

C perfinges toxin

A

Alpha toxin

27
Q

Eaton lambert

A

Pre synaptic
Calcium channels blocked

28
Q

Myasthenia gravis

A

Post synaptic
ACh

29
Q

Purple urine in catheter

A

Pseudomonas aeruginosa

30
Q

Most common causative organism in osteomyelitis

A

Staph aureus

31
Q

Most common causative organism in osteomyelitis in sickle cell patients

A

Salmonella

32
Q

Most common causative organism in osteomyelitis in spine

33
Q

Most common causative organism in osteomyelitis in IVDU

A

Pseudomonas

34
Q

Most common organism causing diverticulitis/appendicitis

A

Bacteroides fragilis

35
Q

Cat scratch

A

Bartonella henselae

36
Q

Human bite

A

Eikenella corrodens

37
Q

Yersinia enterocolitis

A

RIF pain
Erythema nodosum

38
Q

Sporotrichosis

A

No fever/pain
Gardening
Lymphatic nodules

39
Q

Bacilus antracis

A

Sheep farmer
Painless black ulcer
Government notifiable

40
Q

Enterobius vermicularis

A

Threadworms
Mebendazole

41
Q

1-2 day post op fever

A

Atelectasis/pneumonia

42
Q

3-5 day post op fever

43
Q

5-7 days post op fever

A

Surgical site infection

44
Q

5+ days post op fever

45
Q

Chemical used to sterilise scopes

A

Ethylene oxide

46
Q

Macrolides

A

Attack 50s subunit
Macro = big

47
Q

Aminoglycosides

A

Attack 30s subunit
Mini = small

48
Q

Vancomycin

A

Attack cell wall

49
Q

Quinolones

A

Tendon rupture
Attack DNA gyrase - gyrate on dance floor with Achilles heel

50
Q

Penicillins

A

Attack cell wall

51
Q

Trimethoprim

A

Prevents folate synthesis

52
Q

Amoxicillin

A

Rash with EBV

53
Q

Trimethoprim

A

Causes irreversible pancytopenia when give with methotrexate

54
Q

Nitrofurantoin

A

Can cause pulmonary fibrosis

55
Q

Ciprofloxacin

A

Achilles tendonitis
QT interval prolongation

MRCS (26 decks)

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