Microbiology

Question 1

what is the figures for the CURB65 score

Answer 1

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

Question 2

what organism is the commonest community acquired pneumonia

Answer 2

Mycoplasma pneumonia

Question 3

what organism causes Q fever

Answer 3

Coxiella brunetti

Question 4

what type of organism that causing pneumonia is caused by birds

Answer 4

chlamydophilia psittaci

Question 5

what is the lab confirmation of pneumonia organism

Answer 5

serology

PCR

Question 6

what is the severe presentation of bronchiolitis

Answer 6

intercostal/sternal indrawing

decreased PaO2

Question 7

what are the majority of bronchiolitis cases caused by

Answer 7

Respiratory Synctial Virus

RSV

Question 8

how is RSV confirmed

Answer 8

throat swab

PCR

Question 9

there is epidemics of RSV every summer - true or false

Answer 9

false

epidemics at winter

Question 10

what organisms has the highest incidence in winter

Answer 10

metapneumovirus

Question 11

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

Answer 11

false

it is the second most likely

Question 12

what organisms can cause infantile pneumonia and is also an STI

Answer 12

Chlamydia tachomatis

Question 13

how can Chlamydia tachomatis be diagnosed

Answer 13

PCR of mother’s urine

throat swab of child

Question 14

what organism can a test for psittacosis accidentally pick up

Answer 14

Chlamydophila pneumoniae

Question 15

what organism can cause acute epiglottis

Answer 15

Haemophilus influenzae

Question 16

what organism has a chocolate agar

Answer 16

haemophilus influenzae

Question 17

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

Answer 17

true

Question 18

what is the microscopy characteristics of Streptococcus pneumoniae

Answer 18

gram positive cocci in pairs/short chains

Alpha haemolytic colonies

Question 19

what is the test for legionella pneumonia

Answer 19

urine antigen test

Question 20

treatment for legionella pneumonia

Answer 20

erthyromycin
Or
clarythrimycin

Question 21

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

Answer 21

Pneumocysitis carinii pneumonia (PCP)

or Pneumocystis jiroveci

Question 22

what is the method for diagnosing PCP/pneumocystis jiroveci

Answer 22

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

Question 23

treatment of PCP/pneumocystic jiroveci

Answer 23

Cotrimoxazole, pentamidine

Question 24

most common fungal chest infection organism

Answer 24

Aspergillus fumigatus

Question 25

what do we use to identify TB

Answer 25

Ziehl-Neelsen stain

Question 26

what is the treatment for mild/moderate Community acquired pneumonia

Answer 26

Amoxicillin 1g Oral 5 days

Question 27

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

Answer 27

Doxycycline PO 200mg on day 1 then 100mg | or IV Clarithromycin

Question 28

what is the score for mild/moderate community acquired pneumonia

Answer 28

0-2

Question 29

what is the score for severe community acquired pneumonia

Answer 29

3-5

Question 30

what is the treatment for severe CAP

Answer 30

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

Question 31

what is the treatment for severe CAP is allergic to penicillin

Answer 31

IV Levofloxacin 500mg

Question 32

treatment for severe HAP

Answer 32

IV Amoxicillin + Metronidazole + Gentamicin | Step down PO Co-trimoxazole + Metronidazole

Question 33

treatment for severe HAP if penicillin allergic

Answer 33

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

Question 34

what is the total length of time of treatment of HAP

Answer 34

7 days

Question 35

treatment for non-severe HAP

Answer 35

PO Amoxicillin + Metronidazole (5 days)

Question 36

treatment for non-severe HAP if penicillin allergic

Answer 36

PO Co-trimoxazole + Metronidazole

Question 37

when are COPD exacerbations treated with antibiotics

Answer 37

if increased sputum purulence

Question 38

what is the first line treatment of COPD exacerbation

Answer 38

Amoxicillin 500mg

Question 39

2nd line treatment of COPD exacerbation

Answer 39

Doxycycline 200mg day 1 | 100mg then on

Question 40

treatment of epiglottis

Answer 40

Ceftriaxone