Firstly, urine routine test
There are no abnormal symptoms in early stages. But Hematuria appears and
even Proteinuria occurs in some sufferers in middle and final stage. Pyocyte and
leucocyte can be detected when stone and infection happens.
Secondly, urine osmotic pressure test
The damage of kidney concentration filtration can present even there is only
several cysts in the early stage of lesion. This implies that the lesion does
not relate with damaged renal structure totally, it may be caused by the bad
response of kidney to diuretic agent. The decline of renal concentration
function is prior to that of glomerulus filtration rate.
Thirdly, serum creatinine
Serum creatinine rises progressively with renal compensatory ability failure.
Creatinine clearance rate is a sensitive indicator.
Fourthly, kidney ureter bladder (KUB) plain film presents the shade of kidney
enlarge and irregular kidney outline.
Fifthly, intravenous pyelogram (IVP) presents deformation signs of renal
pelvis, renal calices; they have strange shapes like spiders. Kidney pelvis is
flat and wide and calices neck is extended, curled-shape seemingly.
Sixthly, Type-B Ultrasonic examination shows many dark spaces in bilateral
kidney areas.
Seventhly, computed tomography (CT) shows that bilateral kidneys enlarge, the
external shape appears lobulated and numerous cysts with thin wall are full of
liquid.