Mohd Aslam Regulation of body fluid volume and osmolality Regulation of electrolyte balance Regulation of acidbase balance Excretion of waste products urea creatinine ammonia drugs ID: 932623
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Slide1
Renal Function Tests
Dr.
Mohd
.
Aslam
Slide2Regulation of body fluid volume and osmolality
Regulation of electrolyte balance
Regulation of acid-base balanceExcretion of waste products (urea, creatinine , ammonia, drugs,toxins)Retention of substances vital to body – glucose, amino acidsRegulation of blood pressureProduction and secretion of hormones – renin, erythropoietinProduction of vitamin D3 ( active form of vitamin D )
Functions of the Kidney
Slide3Slide4Slide5Slide6Slide7Slide8Tests to evaluate glomerular functionTests to measure renal plasma flow
Tests to evaluate tubular function
Urine analysisMiscellaneous test: 1. Tubular Proteinuria2. Generalized Aminoaciduria3. Glycosuria4. Fractional sodium excretion5. Sp
gr
and
osmolality
of urine
6. concentration and dilution tests
7. Acid load test
Classification of renal function test
Slide9Slide10Slide11Slide12Slide13Slide14Slide15Slide16Slide17Slide18Slide19Slide20Slide21Slide22Slide23Slide24Slide25Slide26Slide27Slide28Slide29Slide30Slide31Slide32BLOOD BIOCHEMISTRY1. Blood urea nitrogen
Concentration of blood urea is expressed as BUN
Molecular weight of urea is 60 and 28 grams of nitrogen are present in 1 mole of ureaThe real concentration of urea is BUN X (60/28).Utility is limited as BUN is affected by a number of non renal factors.Azotemia – increase in blood level of ureaUremia – is a clinical syndrome resulting from this increaseAdults – 7-18 mg / dl
> 60 yrs - 8- 21 mg / dl
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