Kidney function tests

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Kidney Function Tests
R. C. Gupta M.D. (Biochemistry) Jaip
ur (Rajasthan), India
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Urine examination
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Serum urea
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Serum creatinine
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Urea clearance
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Creatinine clearance
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Volume of 24-hour urine is measured accurately
Concentration of creatinine in urine and serum is
measured
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Creatinine clearance is calculated from the
formula UV/S
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Serum cystatin C
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Inulin clearance
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Phenolsulphonephthalein (PSP) excretion test
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Concentration test
This is also a test of tubular function
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When water content of body decreases, tubular
reabsorption of water is increased
This is done to conserve water the urine becomes
concentrated
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Dilution test
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para-Amino hippurate clearance
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Thank you