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Respiratory SB > Microbiology > Flashcards

Microbiology Flashcards

1
Q

what is the figures for the CURB65 score

A

C - new onset of confusion
U - urea > 7
R - resp rate > 30/min
BP - systolic less than 90, diastolic less than 60

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2
Q

what organism is the commonest community acquired pneumonia

A

Mycoplasma pneumonia

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3
Q

what organism causes Q fever

A

Coxiella brunetti

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4
Q

what type of organism that causing pneumonia is caused by birds

A

chlamydophilia psittaci

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5
Q

what is the lab confirmation of pneumonia organism

A

serology

PCR

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6
Q

what is the severe presentation of bronchiolitis

A

intercostal/sternal indrawing

decreased PaO2

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7
Q

what are the majority of bronchiolitis cases caused by

A

Respiratory Synctial Virus

RSV

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8
Q

how is RSV confirmed

A

throat swab

PCR

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9
Q

there is epidemics of RSV every summer - true or false

A

false

epidemics at winter

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10
Q

what organisms has the highest incidence in winter

A

metapneumovirus

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11
Q

metapneumovirus is the most likely cause of bronchioloitis - true or false

A

false

it is the second most likely

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12
Q

what organisms can cause infantile pneumonia and is also an STI

A

Chlamydia tachomatis

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13
Q

how can Chlamydia tachomatis be diagnosed

A

PCR of mother’s urine

throat swab of child

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14
Q

what organism can a test for psittacosis accidentally pick up

A

Chlamydophila pneumoniae

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15
Q

what organism can cause acute epiglottis

A

Haemophilus influenzae

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16
Q

what organism has a chocolate agar

A

haemophilus influenzae

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17
Q

the X and V test is used to identify haemophilus influenzae - true or false

A

true

18
Q

what is the microscopy characteristics of Streptococcus pneumoniae

A

gram positive cocci in pairs/short chains

Alpha haemolytic colonies

19
Q

what is the test for legionella pneumonia

A

urine antigen test

20
Q

treatment for legionella pneumonia

A

erthyromycin
Or
clarythrimycin

21
Q

what organism is the most likely cause of pneumonia in HIV (same organism with 2 names)

A

Pneumocysitis carinii pneumonia (PCP)

or Pneumocystis jiroveci

22
Q

what is the method for diagnosing PCP/pneumocystis jiroveci

A

Bronchioalvelar lavage (BAL) or induced sputum and identification of cysts

23
Q

treatment of PCP/pneumocystic jiroveci

A

Cotrimoxazole, pentamidine

24
Q

most common fungal chest infection organism

A

Aspergillus fumigatus

25
Q

what do we use to identify TB

A

Ziehl-Neelsen stain

26
Q

what is the treatment for mild/moderate Community acquired pneumonia

A

Amoxicillin 1g Oral 5 days

27
Q

what is the treatment for mild/moderate Community acquired pneumonia if allergic to penicillin

A

Doxycycline PO 200mg on day 1 then 100mg

or IV Clarithromycin

28
Q

what is the score for mild/moderate community acquired pneumonia

A

0-2

29
Q

what is the score for severe community acquired pneumonia

A

3-5

30
Q

what is the treatment for severe CAP

A

Co-amoxiclav IV + either Clarithromycin IV or Doxycycline PO 100mg

31
Q

what is the treatment for severe CAP is allergic to penicillin

A

IV Levofloxacin 500mg

32
Q

treatment for severe HAP

A

IV Amoxicillin + Metronidazole + Gentamicin

Step down PO Co-trimoxazole + Metronidazole

33
Q

treatment for severe HAP if penicillin allergic

A

IV Co-trimoxazole + Metronidazole +/- Gentamicin Step down to PO Co-trimoxazole + Metronidazole

34
Q

what is the total length of time of treatment of HAP

A

7 days

35
Q

treatment for non-severe HAP

A

PO Amoxicillin + Metronidazole (5 days)

36
Q

treatment for non-severe HAP if penicillin allergic

A

PO Co-trimoxazole + Metronidazole

37
Q

when are COPD exacerbations treated with antibiotics

A

if increased sputum purulence

38
Q

what is the first line treatment of COPD exacerbation

A

Amoxicillin 500mg

39
Q

2nd line treatment of COPD exacerbation

A

Doxycycline 200mg day 1

100mg then on

40
Q

treatment of epiglottis

A

Ceftriaxone

Respiratory SB (14 decks)

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