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Urine Analysis of Glycosuric Patients

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Urine Analysis of Glycosuric Patients International Journal of Applied Science-Research and Review www.ijas.org.uk Original Article Urine Analysis of Glycosuric Patients Amit H. Agravat*, Gauravi A. Dhruva, Mahesh R. Kakadiya, Krupal M. Pujara and Amit A. Gharia Department of Pathology P.D.U. Medical College, Rajkot (Gujarat, India) A R T I C L E I N F O A B S T R A C T Received 07 Nov. 2014 Received in revised form 17 Nov. 2014 We investigated the presence of proteinuria by urine dipstick for Accepted 18 Nov. 2014 glomerular disease and microscopic examination of pus cells for asymptomatic pyuria or urinary tract infection. Study was conducted at Keywords: Outpatient departmental laboratory of Pathology Department at P.D.U. Urine dipstick test, Medical College & Hospital, Rajkot on 400 glycosuric patient’s urine Glycosuria, Proteinuria, samples. Out of them 192 samples were positive for both protein and pus Urinary tract infection. cells while 53 samples were positive for only protein & 34 samples having only microscopic pus cells seen. So risk of developing glomerular disease and urinary tract infection coexisting in glycosuric patients is approximately 48%, only glomerular disease or asymptomatic proteinuria is approximately 13.25% & only asymptomatic pyuria or urinary tract infection is approximately 8.5%. Glycosuria leads to disturbance of kidney function and increasing risk of urinary tract infection. Our result shows there are increased chances of progression to glomerular disease Corresponding author: Department of and susceptibility to urinary tract infection in patients having glycosuria. Pathology P.D.U. Medical College, Rajkot (Gujarat, India). E-mail address: [email protected] © 2014 International Journal of Applied Science-Research and Review All rights reserved INTRODUCTION The urine analysis is one of the most albumin level to detect chronic kidney disease is commonly desired clinical tests in pediatrics and already recommended for individuals with elderly age group patients. This high frequency diabetes mellitus because they may be missed in of test is partly due to the ease of urine a small number of individuals. Dipstick testing collection and testing. Since glycosuria is often of urine with protein or albumin reagent strips found easily on routine examination of the urine, has been established in clinical practice and has the importance of this simple procedure in every often been recommended for early detection of case is obvious. When a reducing substance is chronic kidney disease in patients who have found in the urine, it is necessary to confirm it as diabetes or glycosuria. glucose. Advances in chemistry allowed Urine dipstick analysis is used to screen significant progress in urine testing methods asymptomatic patients and to test for specific during the nineteenth century, and the modern indications6. The appearance of glucose in the era of reagent strip (dipstick) testing began in urine may reflect high plasma glucose, resulting 19561. Evidence of kidney damage is usually in a glucose load in the filtrate that exceeds the indicated by albuminuria or proteinuria2-5 and proximal tubule’s ability to reabsorb glucose. pyuria associated with urinary tract infection by Typically, glucose does not appear in the urine microscopic examination of inflammatory cells until the plasma level exceeds 180 to 200 or by leukocyte esterase produced by neutrophils mg/dL. Alternatively, glycosuria may reflect a & nitrites by urine dipstick test. Measuring defect in the proximal tubule cells’ ability to Agravat et al___________________________________________________ ISSN: 2394-9988 reabsorb a normal filtered glucose load. When preservatives. The samples were first screened this defect is an isolated one, it is termed as renal by dipstick test. Those samples which are glycosuria. positive for sugar (+1 or more) on dipstick test Under normal circumstances, low were tested further and included in our study. molecular weight proteins and a small amount of The sample size thus comprised of 400 samples. albumin are filtered through the glomerular These samples are further examined for dipstick capillary wall. As a result, up to 150 mg/d (in test of protein (suggesting glomerular disease) adults) or 4 mg/m²/hr (in children) of protein in and microscopic examination. For microscopic the urine is considered to be within normal examination approximately 10 ml of urine limits. In glomerular disease, the primary protein sample was centrifuged for 10 minutes at 2000 excreted is albumin, whereas in tubular disease, rpm, the supernatant decanted and the remaining low molecular weight proteins7. The presence of sediment examined on a glass slide at low power increased protein in the urine can signify and then high power to check for pus cells. underlying renal disease, although there are a Greater than 5 pus cells per high power field number of false positives/negatives. A common (hpf) was considered as abnormal (positive for cause of proteinuria in asymptomatic patients is pus cells). The results were then analyzed with orthostatic proteinuria, a benign diagnosis, SPSS version 17 software (IBM). which should be ruled out using a first morning void specimen before pursuing further RESULTS evaluation. Microscopic examination of the urine Out of 400 glycosuric patient’s urine primarily consists of examining the urine for the samples 192 samples were positive for both presence of cells, casts, crystals, and bacteria. proteins by urine dipstick and pus cells by Urine microscopy should be performed on any microscopic examination while 53 samples were patient who has persistent glycosuria, hematuria only positive for protein & 34 samples having or proteinuria and may be useful if the urine only microscopic pus cells seen giving evidence dipstick is suggestive of UTI. Pyuria usually of asymptomatic pyuria or urinary tract signifies UTI, although it is not specific for infection. So risk of developing glomerular UTI8. Other conditions that can result in pyuria disease and urinary tract infection coexisting in include fever, glomerulonephritis, and other glycosuric patients is approximately 48 %, only inflammatory processes, whether in the bladder glomerular disease or asymptomatic proteinuria or pelvic region (eg, appendicitis). The presence in approx 13.25 % & only asymptomatic pyuria of pyuria does not add to and may not be as or urinary tract infection is approx 8.5 %. good a screen for UTI as LE and nitrites from the urine dipstick9; the urine should still be DISCUSSION cultured to confirm UTI. White blood cells from the vagina can contaminate urine specimens and There are doubts about the presence of give a false positive reading. glycosuria and the progress of glomerular disease and UTI. Some reports suggest that MATERIALS AND METHODS glycosuria could be an index of a more severe tubulointerstitial lesion and provide adequate This was a cross-sectional study done on environment for bacterial growth. Since routine urine samples over a period of one glycosuria is often found easily on routine month duration in May 2014. Written informed examination of the urine, the importance of this consent was taken from all patients and the simple procedure in every case is obvious. study was approved by Institute’s Ethical Unless this symptom is severe or long-standing, Clearance Committee. All samples collected many of these patients make no suggestive were midstream urine voiding and collected in a complaint when first seen. clean sterile container and examined within 30 The urinalysis is a frequently used tool minutes. Samples were not stored longer than 1 in primary care, and abnormal findings are hour and not been admixture with any common. The utility of mass urinalysis IJAS [1][3][2014] 098-101 Agravat et al___________________________________________________ ISSN: 2394-9988 screening remains to be determined. Urine susceptibility to urinary tract infection as dipstick analysis remains one of the few tests evidenced by presence of pus cells in microscopic commonly performed as a primary investigation. examination of urine in patients having glycosuria It is used to screen asymptomatic patients and to as compare to general public having kidney test for specific indications. Likewise, abnormal disease or diagnosed UTI by reference data findings are sometimes expected and sometimes available. Therefore its proved that glycosuria incidental. It must be remembered that not all increase the morbidity and mortality among the abnormal results are clinically significant. diabetic patients or asymptomatic glycosuric Abnormal results can result from pathologic or patients. nonpathologic causes. In addition, false positive and false negative results are common. (See REFERENCES table 1.) Our data analysis shows out of 400 1. Voswinckel P. A marvel of colors and ingredients glycosuric patient’s urine samples 192 samples - The story of urine test strip. Kidney Int Suppl were positive for both proteins by urine dipstick 1994; 47:S3–7. test and pus cells by microscopic examination. 2. Eddy AA, Michael AF. Acute tubulointerstitial This indicate presence of reducing substances in nephritis associated with aminonucleoside urine causes tubulointerstitial damage and provide nephrosis. Kidney Int 1988; 33:14-23. appropriate adequate environment for bacterial 3. Eddy AA. Interstitial nephritis induced by growths and progress toward the UTI. So risk of protein-overload proteinuria. Am J Pathol 1989; 135:719-733. developing glomerular disease and urinary tract 4. Ong ACM, Fine LG. Loss of glomerular
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