KIDNEY FUNCTION TEST

50 %
50 %
Information about KIDNEY FUNCTION TEST
Education

Published on February 21, 2012

Author: pharmaravijo18

Source: authorstream.com

PowerPoint Presentation: KIDNEY FUNCTION TEST PowerPoint Presentation: WHAT IS KIDNEY? KIDNEYS.THE BODYS NATURAL FILTRATION SYSTEM PERFORMING FOLLOWING MAJOR FUNCTIONS MAINTENANCE OF HOMEOSTASIS EXCRETION OF METABOLIC WASTE PRODUCTS RETENTION OF SUBSTANCES VITAL TO THE BODY HORMONAL FUNCTIONS PowerPoint Presentation: NEPHRON NEPHRON IS A FUNCTIONAL UNIT OF KIDNEY. A STRUCTURE THAT ACTUALLY PRODUCES URINE IN THE PROCESS OF REMIVING WASTES . THERE ARE ABOUT 1,000,000 NEPHRONS IN EACH HUMAN KIDNEYS. PowerPoint Presentation: FORMATION OF URINE GLOMERULAR FILTRATION TUBULAR REABSORPTION GLOMERULAR FILTRATION : IT S A PASSIVE PROCESS THAT RESULTS IN THE FORMTION OF ULTRAFILTRATE OF BLOOD. ALL THE CONSTITUENTS OF PLASMA WITH MOL.WT LESS THAN THAT 70,000 ARE PASSED INTO THE FILTRATE The blood supply to kidneys is relatively large. About 1200 ml of blood passes through the kidneys, every minute. From this about 120-125 ml is filtered per minute by the kidneys and this is referred to as glomerular filtration rate (GFR). Normal GFR 120-125 ml.min In adult 175-180 lits/day More than 99 % of the glomerular filtrate is reabsorbed by the kidneys/ PowerPoint Presentation: TUBULAR REABSORPTION THE RENAL TUBULES RETAIN WATER AND MOST OF THE SOLUBLE CONSTITUENTS OF THE GLOMERULAR FILTRATE BY REABSORPTION THIS MAY OCCUR EITHER PASSIVE OR ACTIVE PROCESS PowerPoint Presentation: TESTS TO ASSESS RENAL FUNCTION IT IS DEVIDED IN TO FOUR GROUPS 1. GLOMERULAR FUNCTION TETS All the clearance tests are included (inulin,creatinine,urea) 2. TUBULAR FUNCTION TEST Urine concentration or dilution test, urine acidification test 3. ANALYSIS OF BLOOD AND SERUM Estimation of blood urea, serum creatinine,protein,electrolyte 4 . URINE EXAMINATION Urine volume,pH,specific gravity,osmolality, and certain abnormal constituents (protein.blood,ketone bodies,etc .) PowerPoint Presentation: CLEARANCE TESTS CREATININE CLEARENCE TEST UREA CLEARENCE TEST Clearance in generaly,is defined as the volume of plasma that would be completely cleared of a substance per mint.In other words clearance of a substance refers to the ml of plasma which contains the amount of the substance excreted by kidney/min . Clearance expressed as ml/min Formula C = U x V / P U = Conc of the substance in urine V = Volume of urine in ml excreted per min. P = Conc of the substance in plasma PowerPoint Presentation: CREATININE CLEARENCE TEST Creatinine is the excretory product derived from creatinine phosphate (largely present in the muscle). IT IS DEFINED AS THE VOLUME OF PLASMA THAT WOULD BE COMPLETELY CLEARED OF CREATININE / MIN. PROCEUDRE In traditional, creatinine content of a 24 hr urine collection and the plasma concentration in this period are estimated. FORMULA C = U x V/ P U = Urine concn of creatinine V = Urine output in ml/min (24 hr urine volume divided by 24 x 60) P = Plasma cocn of creatinine PowerPoint Presentation: MODIFIED PROCEDURE COLLECT URINE FOR 1hr,AFTER GIVING WATER VOL UME OF URINE IS RECORDED CREATININE CONTENTS IN PLASMA AND URINE ARE ESTIMATED CREATININE CLEARENCE CALCUTED BY FORMULA NORMAL RANGE OF CREATININE CLEARENCE – 120-145 ml/min PowerPoint Presentation: UREA CLEARENCE TEST UREA IS THE END PRODUCY OF PROTEIN METABOLSIM UREA CLEARENCE IS DEFINED AS THE VOLUME(ml) OF PLASMA THAT WOULD BE COMPLETELY CLEARED OF UREA PER MINT . FORMULA Cm = U x V / P Cm = MAXM. UREA CLEARENCE TEST U = UREA CONCENTRATION IN URINE (mg/ml) V = URINE EXCRETED PER MIN IN ML P = UREA CONC IN PLASMA (mg/ml) Above calculation is applicable if the output of urine is more than 2 ml/min .This referred to as MAXM UREA CLEARENCE . NORMAL VALUE 75ml/MIN PowerPoint Presentation: STD UREA CLEARENCE THE UREA CLEARENCE DRASTICALLY CHANGES WHEN THE VOLUME OF URINE IS LESS THAN 2ml/min. THIS KNOWN AS STD UREA CLEARENCE . NORMAL VALUE 54 ml/min FORMULA Cs = U x√V /P PowerPoint Presentation: UREA CONCENTRATION TEST PURPOSE : TO ASSCESS THE RENAL TUBULAR FUNCTION PROCEDURE IT INVOLVES THE ACCURATE MEASUREMENT OF SPECIFIC GRAVITY WHICH DEPEND UPON CONC OF THE SOLUTES IN URINE NORMAL VALUE : A SPECIFIC GRAVITY OF 1.020 IN EARLY MORNING URINE SAMPLE CONSIDERED AS NORMAL TUBULAR FUNCTION TEST : Urea conc. test is coming under tubular function test

Add a comment

Related presentations

Related pages

Kidney function tests: MedlinePlus Medical Encyclopedia

Kidney function tests are common lab tests used to evaluate how well the kidneys are working. Such tests include: ... BUN - blood test; Creatinine blood test;
Read more

Tests to Measure Kidney Function, Damage and Detect ...

Become a Member. Become a professional member of the national kidney foundation, and join a nephrology community like no other.
Read more

Routine Kidney Function Blood Test. Kidney Function Test ...

Routine blood test of kidney function. The usual blood test which checks that the kidneys are working properly measures the level of urea, creatinine and ...
Read more

Kidney Function Tests : Purpose, Types & Procedure

Kidney function tests are simple blood and urine tests that can help identify problems with your kidneys. The kidneys filter waste materials from the blood.
Read more

Renal function - Wikipedia

Renal function, in nephrology, is an indication of the state of the kidney and its role in renal physiology. Glomerular filtration rate (GFR) describes the ...
Read more

Medical Tests of Kidney Function - WebMD

"The National Institute of Diabetes and Digestive and Kidney Diseases of The National Institutes of Health. Medical Tests of Kidney Function.
Read more

kidney function test | Britannica.com

Kidney function test, any clinical and laboratory procedure designed to evaluate various aspects of renal (kidney) capacity and efficiency and to aid in ...
Read more

kidney function test – Blood Test Results Explained

How to read urine test results which contain blood in urine, and how to understand the clinical importance of red blood cells in urine analysis, learn how ...
Read more

Creatinine Blood Test: Normal Range, Low & High Results

Learn more about the creatinine blood test, a test that measures kidney function. Learn what the results of the creatinine blood test mean and how abnormal ...
Read more

Two Simple Tests To Check for Kidney Disease - The ...

Two Simple Tests To Check for Kidney Disease. ... Three positive results over three months or more is a sign of kidney disease. Blood Test to estimate your ...
Read more