URINARY TRACT INFECTION (UTI) IS A BACTERIAL INFECTION OF THE URINARY TRACT.
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The commonest causative agent is Escherichia Coli. It must be remembered that even though urine
contains so called waste products of the body, it does not contain bacteria. However if bacteria
enters the urinary system and multiplies, it can reach a critical concentration to cause a urinary
infection which in selected situations can cause sepsis and even death.
There are two kinds of urinary infections, upper tract or kidney infection and lower tract or
bladder infection. Lower tracts infection are more common and occur >95% of all UTI and the women
present with pain passing urine (dysuria), urinary urgency and frequency and sometimes blood
in the urine with fever. Upper tract infection are less common but potentially more serious.
Patients can complain of flank pain and high fever and may even have a drop in blood pressure
if sepsis occurs. Elderly patients with lower immunity status example in diabetics or those with
retention of urine are at higher risk to be overwhelmed with infection.