An accurate method for the determination of nitrates in blood and urine is necessary for complete studies of nitrogen metabolism in patients to whom nitrates are given as diuretics. Various calorimetric methods for the determination of nitrates have been described. Caron (1) used diphenylamine, but the results were widely variable. Letts and Rea (2) replaced diphenylamine with diphenylbenzidine...

An accurate method for the determination of nitrates in blood and urine is necessary for complete studies of nitrogen metabolism in patients to whom nitrates are given as diuretics. Various calorimetric methods for the determination of nitrates have been described. Caron (1) used diphenylamine, but the results were widely variable. Letts and Rea (2) replaced diphenylamine with diphenylbenzidine...

An accurate method for the determination of nitrates in blood and urine is necessary for complete studies of nitrogen metabolism in patients to whom nitrates are given as diuretics. Various calorimetric methods for the determination of nitrates have been described. Caron (1) used diphenylamine, but the results were widely variable. Letts and Rea (2) replaced diphenylamine with diphenylbenzidine...

An accurate method for the determination of nitrates in blood and urine is necessary for complete studies of nitrogen metabolism in patients to whom nitrates are given as diuretics. Various calorimetric methods for the determination of nitrates have been described. Caron (1) used diphenylamine, but the results were widely variable. Letts and Rea (2) replaced diphenylamine with diphenylbenzidine...

An accurate method for the determination of nitrates in blood and urine is necessary for complete studies of nitrogen metabolism in patients to whom nitrates are given as diuretics. Various calorimetric methods for the determination of nitrates have been described. Caron (1) used diphenylamine, but the results were widely variable. Letts and Rea (2) replaced diphenylamine with diphenylbenzidine...

In 1913 Jolles (1) introduced alcoholic thymol as a reagent for the detection of indican in urine, and later, based upon its use, developed a calorimetric method (2) for the estimation of indican in both urine and blood. His method for urine consisted in adding to 10 cc. of urine filtrate, after clarification with lead acetate, 1 cc. of 5 per cent alcoholic thymol, and 10 cc. of concentrated hy...

OBJECTIVE To determine the sensitivity, specificity, Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of Urine Nitrite (NIT) and Leukocyte Esterase (LE) test compared with urine culture for diagnosis of UTI. STUDY DESIGN Validation study. PLACE AND DURATION OF STUDY Department of Microbiology, Army Medical College, Rawalpindi, from January 2013 to December 2013. METHODO...