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Year 3 > Infectious diseases > Flashcards

Infectious diseases Flashcards

1
Q

Which microorganism can cause infection from faulty air conditioning?

A

Legionella

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2
Q

Which scoring system do we use to assess pneumonia?

A

CURB-65

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3
Q

What are the two main organisms which cause CAP?

A

Streptococcus pneumonia, haemophilia influenzae B.

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4
Q

What are the causes of atypical pneumonia?

A

Mycoplasma pneumonia
Legionella pneumophilia
Chlamydia pneumonia

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5
Q

What are the two main organisms which cause HAP?

A

Staphylococcus aureus
Aeurginosa
Klebsiella

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6
Q

Which microorganism is associated with pet birds?

A

Chlamydia Psittaci

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7
Q

Which respiratory failure do you normally see with pneumonia?

A

Type 1 respiratory failure i.e. low O2, normal CO2.

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8
Q

What is an important key symptom associated with pneumonia?

A

Confusion

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9
Q

How do we treat CAP?

A

Amoxicillin +/Co-amoxiclav

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10
Q

What do we use to treat atypical pneumonia?

A

Clarithromycin; different cell walls.

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11
Q

What are 4 main causes of clubbing?

A

Bronchiectasis
TB
Lung Cancer
IPF (idiopathic pulmonary fibrosis)

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12
Q

What are the four main causes of basal crepitations?

A

Heart failure
Pneumonia
Bronchiectasis
IPF (idiopathic pulmonary fibrosis)

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13
Q

Which is the main microorganism which can cause infection in dental tooth extraction?

A

Streptococcus Viridian.

Dental = streptococcus!

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14
Q

Which microorganism causes diarrhoea with a rice watery appearance?

A

Vibrio cholera

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15
Q

Which microorganism causes food poisoning from undercooked chicken?

A

Campylobacter

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16
Q

Which marker is raised in Hepatitis C?

A

Raised afP (alpha fetoprotein).

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17
Q

Malaria is caused by which microorganism?

A

Plasmodium falciparum

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18
Q

Which markers will be raised in a Clostridium difficile infection?

A

CRP, WCC.

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19
Q

Where may you feel pain in the RUQ?

hint, raised ALT, raised ALP

A

Hepatitis A

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20
Q

What does a positive HBV antibody indicate?

A

Previous exposure.

Positive HBV surface antigen indicates active disease.

21
Q

Which is the only common Gram-negative coccus

A

Neisseria

22
Q

Will we see positive or negative bifringent crystals in Gout?

A

Negative (Pseudogout will show positive crystals).

23
Q

Pseudomembranous colitis, toxic megacolon and peritonitis are associated with which bacterium?

A

Clostridium difficile.

24
Q

How do we treat Clostridium difficile?

A

Cephalosporins e.g. Cefuroxime

25
Q

Name a cephalosporin

A

Cefuroxime

26
Q

Co-amoxiclav is which class of drug?

A

Beta lactam

27
Q

Ciprofloxacin is which class of drug?

A

Quinolone

28
Q

Name 4 conditions where we can see erythema nodosum.

A

Sarcoidosis
Streptococcal infection
TB
UC/ Crohn’s disease.

29
Q

What is the most common microorganism to cause Meningitis?

A 
Neisseria Meningitides (in younger)
Streptococcus pneumoniae (in older)
30
Q

Name three investigations for glandular fever.

A

EBV, IgG, IgM, monospot test, FBC.

31
Q

Which are the two most common microorganisms seen in CAP.

A

Haemophilia, streptococcus.

32
Q

How do we treat PCP (pneumocystitis)?

A

Co-trimoxazole.

33
Q

What is a heterophile antibody test?

A

Spot test for infectious mononucleosis/ EBV.

34
Q

Which microorganism do we associate as the cause of food poisoning?

A

Campylobacter jejuni

35
Q

Which subtype of hepatitis can cause jaundice and diarrhoea following eating seafood?

A

Hepatitis A; A is transferred faeco-orally.

36
Q

Which virus causes infectious mononucleosis?

A

Epstein Barr virus (EBV).

37
Q

Which blood group is the universal donor?

A

O negative

O-

38
Q

Which antibiotic should be avoided in infective mononucleosis?

A

Amoxicillin; can develop maculopapulae rash

39
Q

Which is the antibiotic of choice in bacterial tonsillitis?

A

Benzyl-penicillin

40
Q

Which is the antibiotic alternative for those allergic to penicillin?

A

Clarithromycin

41
Q

Which is the antibiotic we use to treat Clostridium difficile?

A

Vancomycin.

42
Q

When a patient is allergic to penicillin, what do we offer?

A

Clarithromycin

43
Q

Which organism causes community acquired pneumonia most commonly?

A

Streptococcus pneumoniae.

44
Q

Which organism causes hospital acquired pneumonia most commonly?

A

Staphylococcus aureus.

45
Q

Which microorganism most commonly causes hospital acquired pneumonia?

A

Staphylococcus aureus

46
Q

When will a patient have Hepatitis D as a diagnosis?

A

After having had hepatitis B (would say in stem)

47
Q

When will a patient have Hepatitis B as a diagnosis?

A

IVDU, sex, needles, travel.

48
Q

When will a patient have Hepatitis A as a diagnosis?

A

Faeco-oral route.

Year 3 (13 decks)

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