Found inside – Page 641This indicates a high intraglomerular pressure which was probably caused by efferent arteriolar constriction . Studies of sodium ... ( OEMcmr - 346 ) Effect of environment on excretion of ascorbic acid in sweat and urine . " Ascorbic acid and ... Found inside – Page 1089Complete ination of the urine sediment indicates findings examination will usually reveal corroborating suggestive of an ... Acetone in the initial The plasma ascorbic acid level will be low . urine may indicate severe dehydration and Before the ... Found inside – Page 259proposed that megadoses of vitamin C may increase oxalate production and thus ... Although metabolic studies indicate that the turnover of ascorbic acid is ... Found insideThis book is a printed edition of the Special Issue "Vitamin C in Health and Disease" that was published in Nutrients Found inside... e.g. Slobody and his associates describe an intradermal test to indicate vitamin C in blood and urine . subnutrition ... decolorised by vitamin C. Slow ( B - amino ethyl ) amino acridine in place of the decolorisation of the dye indicates that the ... Found inside – Page 141ASCORBIC ACID 141 importance . The adequacy of the supply of ascorbic acid can be tested quantitatively by measuring the urinary excretion . Quantities of less than 15 Mgm . daily indicate inadequate intake . Another method is to give an ... Found inside – Page 285A positive ascorbate test indicates large amount of vitamin C are present, which can interfere with urine chemical screening tests. 1. false-negative blood ... Found inside – Page 75In urinary tract infection , a fetid odor is common , especially if Escherichia coli is present . ... Aminosalicylic acid Ascorbic acid Nitrofurantoin Theophylline Thiazide diuretics When accompanied by hematuria , it indicates local or diffuse. URINE ... Found inside – Page 845The reaction of urine when 10 grams of vitamin C are taken daily is pH - 6 . ... All valid reports on the requirements of ascorbic acid indicate the need ... Found inside – Page 138Urine was collected during determination of ascorbic acid bioavailability ... of vitamin C. x Axis indicates vitamin C dose and y axis indicates ascorbic ... Data included under each test includes test name and method, specimen requirements, reference range-conventional, interferences, diagnostic information, and remarks. Found inside – Page 259... high pro- o Leucocytes tein levels or ascorbic acid in the urine may give a false positive result White blood cells in the urine indicate a urinary ... Found inside – Page 260plasma level indicates the state of ascorbic acid nutrition only for the previous few weeks , the buffy coat level ( the ... the tissues are saturated ; the body will have 50 mg ascorbic acid per kg body weight ; urinary excretion will show 60 - 80 ... This volume is the newest release in the authoritative series of quantitative estimates of nutrient intakes to be used for planning and assessing diets for healthy people. Found inside – Page 694Results for P. aeruginosa , S. epidermidis , and C. albicans indicated that there was a trend of increased initial adhesion of S. epidermidis in urine from people taking ascorbic acid and particularly water supplements ( Table 2 ) . However ... Found insideA positive urine bilirubin result (termed bilirubinuria) indicates ... result can occur if urine contains large amounts of ascorbic acid (vitamin C). Found insideEndocrine Biomarkers: Clinical Aspects and Laboratory Determination covers all the pre-analytical variables that can affect test results, both in the clinic and laboratory. Each contains clinical data items from the history, physical examination, and laboratory investigations that are generally included in a comprehensive patient evaluation. Annotation copyrighted by Book News, Inc., Portland, OR Found inside – Page 464Mean daily nitrogen balances are reported . The daily urinary excretions of ascorbic acid preceding and following a test dose of 400 mg . ascorbic acid were determined for 10 healthy women , 10 women with arrested tuberculosis , and 10 ... Found inside – Page 943For example, the ascorbic acid can be determined directly by ... a relatively large proportion of the vitamin will be excreted in the urine. Found inside – Page 526Interference by ascorbic acid ( vitamin C ) is a prime example of this . ... taken and a check is made for the presence of vitamin C in the urine ( 13 ) . Found inside – Page iDiet and Health examines the many complex issues concerning diet and its role in increasing or decreasing the risk of chronic disease. Found inside – Page 255In guinea pigs, ascorbic acid deficiency is characterized by intermittent reductions ... data indicate significant associations of low plasma ascorbic acid ... Found inside – Page 122Excretion and detection of ascorbic acid in urine, as well as a summary of the reagent ... Increased numbers of leukocytes in urine indicate inflammation, ... Found inside – Page 1226Ascorbic acid appears in urine when the concentration of ascorbic acid in the plasma reaches ~ 30 umol / L . It has been assumed that the appearance of ascorbic acid in the urine indicates tissue saturation with the vitamin . However ... In addition to a more user-friendly organization, new features in this edition include: A significantly expanded section on dietary requirements for rats, reporting substantial new findings. Found inside – Page 26Urinary vitamin C excretion as function of single vitamin C doses at steady ... indicates dose and the y - axis indicates amount ( mg ) excreted in urine . Found inside – Page 148pH Normal pH range 4.8–7.6 Acidic urine: acidosis, high protein intake ... low sensitivity Persistent positivity on serial urinalyses indicates urinary ... Found inside – Page 283After fractures , burns and other injury the urinary output of nitrogen , mainly as urea , increases and is associated with a loss of ... The changes indicate that depot fat is mobilized into the blood and this is in accord with the loss of subcutaneous adipose tissue ... Ascorbic acid ( vitamin C ) is necessary for the formation or maturation of collagen and for the proper healing of wounds and fractures . Saturation ... Found inside – Page 142This indicates the participation of ascorbic acid in the dopamine-8-monooxygenase reaction during the formation of noradrenaline (Ingebretsen et al., 1980). Found inside – Page 358When this is the problem , treatment is simple enough : massive doses , 3 grams a day for four days , of ascorbic acid ( vitamin C ) , which acidifies the urine , allowing it to dissolve and carry out the phosphate crystals . URINARY INFECTIONS ... Found inside – Page 8As the test strip is briefly moistened with urine , it will change color . The strip's color ( ranging from yellow to dark blue ) indicates the urine's acid ... Found inside – Page 512The C14 in respiratory carbon dioxide and urine was determined over periods of 24 hours and 10 days . The results of these experiments indicate that the conversion of ascorbic acid to carbon dioxide is a main pathway of its metabolism in ... Found inside – Page 514A reduced cevitamic acid content of blood plasma less than 0 . 50 mg . per cent indicates a marked insufficiency of Vitamin C intake . The Determination of Ascorbic Acid ( Cevitamic Acid ) ( Vitamin C ) in Urine Macromethod . Method No . Found inside – Page 1510This indicates different effects of cycloheximide in Se deficient than supplemented rats . ... Mean urinary excretion of selenium was decreased by ascorbic acid supplementation from a mean of 41.7 ug / day to 36.6 ug / day ( P < 0.04 ) . Found inside – Page 180( B . H . ) appearance in the urine indicates that it is rapidly Vitamin A - Potency of , in Sauga Liver Oil . ... A stock diet and occupations was examined for ascorbic acid for albino rats for use in the biological assay of vita - content of plasma and ... Found insideammonium chloride iiicreasrrl (he urinary excretion of ascorbic acid. The mean dailv • urinary ascorbic acid excretions for the 3 periods are: (.'. C. 1st period, 26±1.3 mg, 2nd period. 19±2.0 mg. and 3rd period, 44±4.1 mg; and J. G. 1st period, ... Found inside – Page 577Leukocyte ascorbic acid < 20 mg / dL suggests poor nutritional status . Riboflavin— < 250 ug / g of creatinine in urine suggests low recent intake of ... Found inside – Page 65The results indicate a role of DA in the production of the amphetamine state ... dose of vitamin C , excrete significantly less ascorbic acid in their urine ... Found inside – Page vThe term folic acid ( FA ) , used in literature to denote all substances having activity for the test organisms , has become confusing since it also can indicate only the vitamin in natural or pure form . Herein , FAA is used to include these above ... Found inside – Page 49The protection of these experiments by ascorbic acid and SOD indicates that the ... In one study ten bladder tumor patients were found to excrete urine with ... Found inside – Page 123... not urine, albumin level is significant; albumin in the urine indicates kidney dysfunction, not liver dysfunction. The RDA requirement of vitamin C for ... Found insideTheir observations indicated a decreased urinary excretion of ascorbic acid and a fall in plasma and tissue ascorbic acid levels after adrenalectomy or hypophysectomy , while there was an increase in ascorbic acid synthesis after subjection to ... Found inside – Page 194Flavonoids and Ascorbic Acid Interactions Ascorbic acid is a universal component of ... The term vitamin P was coined to indicate that this material had the ... Found inside – Page 365Urine glucose is affected by tubular function, but is primarily related to ... Ascorbic acid reacts with hydrogen peroxide to produce a colorless product. Found inside – Page 11Thus , plasma values of zero do not necessarily indicate a scorbutic process ... The authors conclude that vitamin C excretion in the urine and saturation ... 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