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Renal Diagnostics
Renal diagnostic tests
Test | Description |
---|---|
KUB | x-ray of abdomen and pelvis that shows shape, size, and position of kidneys |
IVP | x-ray that visualizes urinary tract after IV contrast |
Retrograde pyelogram | x-ray of urinary tract after IV contrast; then cystoscopy is inserted. Ureteral catheters insert contrast into renal pelvis. |
Renal ultrasound | sound waves interpret tissue density to detect structural defects |
CT scan | Like an ultrasound but better at detecting structural problems. Can be with our without contrast. |
MRI | Radiofrequency waves and magnetic fields help visualize kidneys. |
Cystogram | contrast material into bladder via cystoscope or catheter to visualize bladder and check for reflux |
Renal arteriogram | Contrast material injected into the renal artery by cath into femoral artery to visualize renal blood vessels. |
Renal scan | Radioactive isotopes injected IV to show blood flow, GFR, and perfusion |
Cystoscopy | Lighted scope used to visualize bladder; lithotomy position, with or without sedation |
Renal biopsy | Percutaneous to obtain tissue sample for examination; may be with or without US guidance |