Exam 4 PNR206
Renin - correct answer The kidneys regulate blood pressure by secreting the
enzyme _________
Vitamin D - correct answer The kidneys metabolize __________ ___ into an
active form
2000 to 2500 ml. - correct answer Minimum fluid intake recommended to
prevent urologic disorders
Nephrotoxic - correct answer -Antiinfectives: Aminoglycosides, Sulfa's,
Antifungals, anti-TB, Cephalosporins, Tetracyclines
-ACE inhibitors
-Antineoplastics
-NSAIDs
-IV contrast media
-Heavy Metals
urine culture and sensitivity - correct answer Which Dx Test?
Verify UTI and determine specific infectious organism
-Instruct ptnt on clean-catch method for collection
-Send to lab immediately
Creatinine Clearance - correct answer Which Dx Test?
Determine how well kidneys excrete creatinine
-Collect a 24-hour urine specimen
-Tell patient to avoid rigorous exercise during collection period
-Lab protocol: avoid meat, tea, coffee, or drugs.
BUN (blood urea nitrogen) - correct answer Which Dx Test?
Evaluate kidney function and hydration status.
*Normal Levels: 7-20
, Exam 4 PNR206
-Requires 5 mL of venous blood
Serum Creatinine - correct answer Which Dx Test?
To evaluate kidney function
*Normal levels: 0.8-1.2 (depending on gender)
-Meats, tea, or coffee may be restricted 6 h before the test
-Cephalosporins may be stopped before the test
-Record baseline height and weight
-Avoid strenuous activity before test.
-May include 24-hour urine collection
BUN/Creatinine Ratio - correct answer Which Dx Test?
Help distinguish between renal causes and nonrenal causes of abnormal values
*Normal ratio- 10:1 - 20:1
-If serum creatinine is normal and BUN is elevated- dehydration, increased
protein intake (GI bleeding), or other nonrenal cause is the reason.
-ANY elevation in creatinine should be assumed to be an indicator of renal
dysfunction until proven otherwise
GFR (glomerular filtration rate) - correct answer Which Dx Test?
Measure the level of kidney function
*Normal value for adults: GFR >90 mL/min/1.73 m2(squared)
KUB (kidney, ureter, and bladder) - correct answer Which Dx test?
Visualize the urinary structures or radiopaque stones
-Ptnt needs an x-ray gown that has no radiopaque fasteners
-Test for pregnancy before any radiologic study
Bladder Scan - correct answer Which Dx Test?
Noninvasive method to measure postvoid residual volume or urinary retention
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