BACKGROUND Up to 25% of elderly humans have proteinuria, often associated with underlying lesions. Data concerning the presence of proteinuria in elderly dogs is scarce. OBJECTIVES To describe the presence and persistence of proteinuria and to compare urinary protein : creatinine ratio (UPC) between free catch and cystocentesis urine samples in apparently healthy elderly dogs. ANIMALS Hundr...

The automated rrvethod of O’Neal and Gochman [C/in. Chem. 16, 985 (1970)] for determination of serum and urine amylase activityhas been modified to increase its accuracy, precision, and efficiency. Sampling rate is 50 specimens per hour. The analysis depends on ct-amylase hydrolyzing glycogen to maltose-like subunits, which are measured with the copper neocuproine reaction. Results obtained by ...

background: diabetic patients are more susceptible to urinary tract infections (uti) than non-diabetics .this study was carried out to determine the prevalence and risk factors of urinary tract infections in type 2 diabetic women in tehran. methods: this cross sectional study was designed to examine 511 non-pregnant type 2 diabetic women using consecutive sampling during september and march 200...

INTRODUCTION Preanalytical specifications for urinalysis must be strictly adhered to avoid false interpretations. Aim of the present study is to examine whether the preanalytical factor 'time point of analysis' significantly influences stability of urine samples for urine particle and dipstick analysis. MATERIALS AND METHODS In 321 pathological spontaneous urine samples, urine dipstick (Urisy...

In this study, a method using liquid chromatography triple quadrupole mass spectrometry (LC/MS/MS) is described for the analysis of the plant growth regulator chlormequat (CCC) in human urine. Analysis was carried out using selected reaction monitoring (SRM) in the positive ion mode. [(2)H(4)] labeled CCC as internal standard (IS) was used for quantification of CCC. The limit of detection (LOD)...

The effects of orally ingesting 500 mL of four kinds of test solutions that were isotonic to physiological saline (i.e., containing sodium (Na) and potassium (K) as chloride with Na/K molar ratios of 1, 2, 3 and 4) on urine flow, Na and K excretions from Japanese male students were investigated. The subjects assembled at the National Institute of Nutrition the day before the oral ingestions, wh...

BACKGROUND Dengue laboratory diagnosis is essentially based on detection of the virus, its components or antibodies directed against the virus in blood samples. Blood, however, may be difficult to draw in some patients, especially in children, and sampling during outbreak investigations or epidemiological studies may face logistical challenges or limited compliance to invasive procedures from s...

The 24-hr urine sodium excretion level was estimated based on the spot urine sodium, and the efficacy of the formula was validated to determine the status of low salt intake <100 mEq Na/day. The 24-hr urine samples were collected from 400 patients. The 24-hr urine creatinine level was estimated with the use of three formulas: a newly derived Korean equation (E24UCR_K), and Tanaka (E24UCR_T) and...

A rapid, automated chromatographic method has been developed for the quantitation of the nucleic acid catabolites f3-aminoisobutyric acid and fl-alanine in urine, serum, and other physiological fluids. The analyses were performed on a modified Beckman 121M amino acid analyzer with dual ion-exchange columns and the use of a single sodium citrate buffer (pH 4.38, 0.20 mol/liter). By carefully mat...

of preeclampsia. Urine protein measurement after 24-hour urine collection is the traditional standard method for the detection of proteinuria. It is timeconsuming. As an alternative, random spot sampling for a urine protein to creatinine (P/C) ratio has been investigated. Aims: The aim of the study was to determine the diagnostic accuracy of the protein to creatinine ratio (P/C) compared with 2...