Table 2a.

Indications for asymptomatic group (n = 48) in descending order of frequencya

IndicationNumber of Patients
Microhematuria11
Prior stoneb9
Hepatitis B or C8
BPH7
Chronic renal insufficiency6
Elevated LFTs4
Diabetes4
Prostate cancer4
Hypertension workup4
Flank painc2
Acute renal failure2
Increased creatinine2
Ascites evaluation2
AAA2
Right upper quadrant pain2
Pyuria1
Chronic renal disease1
Left lower quadrant paind1
Neurogenic bladder1
Recurrent UTI1
Cholecystitis1
Urinary incontinence1
Renal artery stenosis1
Malignant hypertension1
ESRD1
Hepatomegaly1
Rule out nephrolithiasis1
N/V/D1
FUO1
Rule out pancreatitis1
H/O hydroureteronephrosis1
Hemorrhagic cystitis1
Nocturia1
Follow-up pyelonephritis1
Hypertensive nephropathy1
Chronic back pain1
Ruptured ovarian cyst1
Prostatitis1
Hypercalcemia1
Hyperparathyroidism1
H/O stents1
Groin pain1
Renal mass1
Gout1
Abdominal pain1
GERD1
Elevated PSA1
  • a AAA, abdominal aortic aneurysm; BPH, benign prostatic hypertrophy; FUO, fever of unknown origin; GERD, gastroesophageal reflux disease; H/O, history of; LFT, liver function test; N/V/D, nausea, vomiting, diarrhea; UTI, urinary tract infection.

  • b Regardless of stone type (includes calcium oxalate, uric acid, and staghorn calculi). For this group, the indication “prior stone” refers to monitoring of a previously asymptomatic stone.

  • c Refers to both acute and chronic flank pain.

  • d This patient was recently diagnosed with diverticulitis.