Microbiology

Question 1

Are staphlococci Gram +ve or -ve?

Answer 1

+ve

Question 2

Are streptococci Gram +ve or -ve?

Answer 2

+ve

Question 3

Are enterococci Gram +ve or -ve?

Answer 3

+ve

Question 4

Are clostridium Gram +ve or -ve?

Answer 4

+ve

Question 5

Are neisseria Gram +ve or -ve?

Answer 5

-ve

Question 6

Is H. pylori Gram +ve or -ve?

Answer 6

-ve

Question 7

Is E. coli Gram +ve or -ve?

Answer 7

-ve

Question 8

Quickly outline the Gram +ve and -ve bacteria

Answer 8

Gram +ve -> staph, strep, entero, clost

Gram -ve -> pretty much everything else

Question 9

Abx for tonsilitis?

Answer 9

Pen V 500mg QDS 10d

Clarithromycin 500mg BD 5d if pen allergy

Question 10

Abx for otitis media in kids?

Answer 10

Amox 5d

Erythro if pen allergy

Question 11

When would you suspect a bacterial cause of sinusitis?

Answer 11

If >3 are present:

• symptoms >10d
• fever >38
• discoloured or purulent discharge
• severe local pain
• marked deterioration after an initial milder form of illness

Question 12

Abx for sinusitis

Answer 12

Pen V 500mg QDS 5d

Doxy 5d if pen allergy

Question 13

Abx acute bronchitis

Answer 13

Amox 500mg TDS 5d

Doxy if pen allergy

Question 14

Abx for acute exacerbation of COPD

Answer 14

Amox 500mg TDS 5d

Doxy if pen allergy

Question 15

Abx for community acquired pneumonia

Answer 15

Amox 500mg TDS 5d

Doxy if pen allergy

Question 16

1st line Abx for UTI

Answer 16

If GFR >45, Nitrofurantoin 100mg BD, 3d women, 7d men

2nd line - Trimethoprim 200mg BD

Question 17

Abx for pyelonephritis

Answer 17

Co-amoxiclav 625mg TDS 7d

Ciprofloxacin if pen allergy

Question 18

Abx for H pylori eradication

Answer 18

PPI BD + Amox 1g BD + either clarithromycin 500mg BD/metronidazole 400mg BD

(PPI + clarithro + met if pen all)

Question 19

Abx of acute diverticulitis

Answer 19

Co-amox 375mg TDS 7d

cipro + met if pen allergy

Question 20

Abx for BV

Answer 20

Metronidazole 400mg BD 7d

Question 21

Abx for Trichomoniasis

Answer 21

Metronidazole 400mg BD 5d, or met 2g single dose

Question 22

Abx for chlamydia

Answer 22

Azithro 1g STAT

Doxy if pen allergy

Question 23

Abx for PID

Answer 23

Ceftriaxone 500mg IM STAT + Met 400mg BD 14d + Doxy 100mg BD 14d

Question 24

Abx for meningococcal disease

Answer 24

IV or IM benzylpen

IV or IM cefotaxime if pen all

Question 25

Mx of TB

Answer 25

Rifampicin 6m
Isoniazid 6m
Pyrazinamide 2m
Ethambutol 2m