ASSESSMENT OF RENAL AND URINARY TRACT Flashcards
(13 cards)
Laboratory and Diagnostic Tests
Urinalysis
Creatinine Clearance Rate
Radioisotope Scanning
Urine Culture
BUN (Blood Urea Nitrogen)
Ultrasonography and Magnetic Resonance Imaging
X-ray
Computed Tomography
Intravenous Pyelogram
Voiding Cystourethrogram
Cystoscopy
Renal Biopsy
One of the most revealing tests of kidney function and one of the simplest
Urinalysis
Measures glomerular filtration rate determined by a 24-hour urine sample
Creatinine Clearance Rate
administration of radioisotopes (a technetium scan) to assess glomeruli filtration ability
Radioisotope Scanning
Diagnose the presence of bacteria in urine
Urine Culture
measures the level of urea in blood and is used to assess glomerular function, or how
well the kidneys can clear this from the bloodstream
BUN (Blood Urea Nitrogen)
can detect differing sizes of kidneys or ureters and can differentiate between solid or cystic
kidney masses
Ultrasonography and Magnetic Resonance Imaging
can provide information about the size and contour of the kidneys
X-ray
are used to show the size and density of kidney structures and adequacy of urine flow
Computed Tomography
• x-ray study of the upper urinary tract
• a radiopaque dye is injected into a peripheral vein, circulates through the bloodstream, and is
almost immediately identified as a foreign substance by the kidney and filtered out into the
urine by the glomeruli. X-ray films taken at frequent intervals show the outline of collecting
systems in the kidney and of the ureters as the radiopaque dye passes through them
Intravenous Pyelogram
• a study of the lower urinary tract, reveals the structure of the urethra and bladder and
the presence of reflux into the ureters
• After bladder catheterization, a radiopaque dye is injected into the bladder, and the
catheter is then removed. The child is asked to void into a bedpan while serial x-ray films
are taken
Voiding Cystourethrogram
examination of the bladder and ureter openings by direct examination with a cystoscope
introduced through the urethra, done to evaluate for possible vesicoureteral reflux or
urethral stenosis
Cystoscopy
involves passing a thin biopsy needle into the kidney through the skin over the kidney.
• The procedure is used to diagnose the extent of renal disease
Renal Biopsy