Q.1
What is the male:female ratio of urinary calculi?

Q.2
Incidence of different urinary calculi is:

Q.3
What is the most appropriate initial investigation to determine the presence of a renal calculus in the following presentation?

A29 year old student presents with acute onset colicky left loin pain,
and describes a history suggestive of urinary calculi.

Q.4
What percentage of urinary calculi are radio-opaque on KUB radiograph?

Q.5
A history of the following suggests what condition?

Fever, rigors, dysuria, ipsilateral loin pain and features of infection in the urine.