Answer: Dilation of the renal pelvis
and calyces proximal to a blockage
The urinary tract obstruction is a
blockage of the flow of urine out of the body. It is characterized by the dilation
of the renal pelvis and calyces proximal to a blockage, which results to
hydronephrosis and progressive fall in glomerular filtration rate (GFR).
Moreover,
it is expected that the obstruction is due to a reduction in nephron glomerular
filtration rate and a reduced number of filtering nephrons.
Unexpected means it was something you did not "expect" to happen such as a car crashing into you which means this is wrong.
Unfair is any injury.
Unnecessary means it was never needed and could have been prevented/not done therefore unnecessary is the best term.
<span>a morbidity survey of the general population, like the national health interview survey</span>
