Microbiology

Question 1

What is the 1st line Abx for cellulitis in a penicillin allergic patient?

Answer 1

Clarithromycin

Question 2

What Abx should be avoided in Myasthenia gravis?

Answer 2

Doxycycline

Question 3

What is the most likely causative organism in ventilator-associated pneumonia and what is the Abx of choice for management?

Answer 3

Pseudomonas (gram -ve)

Abx: Ciprofloxacin

Question 4

What is the most common causative organism in atypical pneumonia?

Answer 4

Mycoplasma pneumonia

Question 5

Which microorganism is commonly the cause of infection in post-operative skin graft procedures?

Answer 5

Staph aureus

Question 6

What pathogen is most commonly associated with necrotising fasciitis?

Answer 6

Group A Streptococcus (e.g. Streptococcus pyogenes)

Question 7

What is the Abx treatment for CF exacerbations with pseudomonas auruginosa?

Answer 7

Ceftazidime AND Tobramycin

Question 8

What is the most common organism involved in dental abscesses?

Answer 8

Bacteroides

Question 9

What is drug of choice for parasites?

Answer 9

Mebendazole

Question 10

What pathogen is associated furunculosis?

Answer 10

Staph aureus

Question 11

What is the 1st line Abx for cellulitis if a patient is penicillin allergic?

Answer 11

Clarithromycin

Question 12

What is the mechanism of action of ketoconazole?

Answer 12

Inhibits the biosynthesis of fungal ergosterol