SECTION 1:

1. A 15-year-old girl presents to you with history of fever and abdominal pain for 3

weeks. There is history of constipation for 4 days and a transient rash which has

since disappeared. On examination the patient is ill looking. The temperature is

40o C while the pulse rate is 67/min. She has also presented with a slight cough

with no physical signs. What would be the most likely causative organism?

A. Entero-invasive Escherichia coli

B. Campylobacter jejuni

C. Salmonella typhi

D. Helicobacter pylori

2. The commonest organisms causing meningitis in neonates:

A. Streptococcus pneumonia and Haemophilus influenza

B. Streptococcus pneumonia and Neisseria Meningitidis

C. Group B B-haemolytic streptococci and Escherichia coli

D. Group B streptococci and Listeria monocytogenes

3. A 10-year-old girl is noted to have cardiac murmur. Two days prior to admission,

she complained of fever and headache and suddenly lost consciousness today. On

examination, she is noted to be febrile and has a left sided hemiplegia. The most

likely reason for the development of the hemiplegia is:

A. Thrombo-embolic phenomena secondary to infective endocarditis

B. Hypertensive crisis

C. Tetralogy of Fallot

D. Development of meningitis with complications

4. A 7-year-old girl presents with chorea following a streptococcal throat infection.

In addition, she is noted to have tachycardia, a gallop rhythm and soft mitral

regurgitation murmur. Of the following interventions, chronic disability is MOST

likely to be prevented by

A. Intravenous penicillin for 6 weeks

B. Intramuscular penicillin monthly

C. Oral prednisolone for 4 weeks

D. Oral salicylates for 6 weeks