c Catheter and laser d Surgery Renal obstruction 1 Casts solid fragments of

C catheter and laser d surgery renal obstruction 1

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c. Catheter and laser d. Surgery
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Renal obstruction:1. Casts: solid fragments of blood clots, epithelium, lipids and other materials. Small amount of casts is normal and they can be eliminated in urine.2. Stones: renal calculi
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26-107Overview of Kidney FunctionsRegulation of blood ionic composition– Na+,K+, Ca+2, Cl-and phosphate ionsRegulation of blood pH, osmolarity & glucoseRegulation of blood volume– conserving or eliminating waterRegulation of blood pressure– secreting renin– adjusting renal resistanceRelease of erythropoietin & calcitriolExcretion of wastes & foreign substances
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Evaluation of Kidney FunctionUrinalysisanalysis of the volume and properties of urinenormal urine is protein free, but includes filtered & secreted electrolytesBlood testsblood urea nitrogen test (BUN) measures urea in bloodrises steeply if GFR decreases severelyplasma creatinine--from skeletal muscle breakdownEstimated GFR = 186 x (plasma creatinine)-1.154x (age) -0.203x (0.742)for female
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  • Fall '10
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  • renal corpuscle, Distal Convoluted Tubule, Nephron loop, DCT, Afferent arterioles

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