Kidney Stone AnalysisTest Overview
Kidney stone analysis is a test done on a
kidney stone to see what chemicals are in it. The test
is done on a kidney stone that has been passed in the urine or removed from the
urinary tract during surgery. Chemical analysis of a
kidney stone shows the
type of stone which can guide treatment and give
information that may prevent more stones from forming. People who have had a
kidney stone have a chance of having another one, so prevention measures are
important. A kidney stone (renal calculus) forms in the kidney
from substances that do not pass out of the body in the urine. See a picture of
a kidney stone  . A kidney stone can be as small as a grain of sand to
as big as 1 in.(2.5 cm) or
larger. Sometimes a stone may leave the kidney and move down a
ureter into the
bladder. From the bladder, the stone passes through
the
urethra and out of the body in urine. See a picture of
the urinary tract . Passing a kidney stone through a ureter
or the urethra may be painless or it may cause severe pain. A kidney stone may
cause other symptoms, such as blood in the urine (hematuria), pain when
urinating, or a severe need to urinate.
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