From the list below, choose the disorder that best matches each description. Write the name of the disorder in the blank.
Renal failure
Pyelonephritis
Kidney stones
Cystitis
Electrolyte imbalance
Mr. Bernardi has had painful abdominal spasms for a day due to an obstruction in the ureter. Now the obstructing material has passed into the bladder. His physician will insert an instrument into the bladder to crush and flush out the material.
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Kidney stones