The color reaction characteristic of cortisone and related compounds (with the 17,21-dihydroxy-20-keto grouping), which Porter and Silber (1) reported in 1950, has been used by a number of investigators to measure the “cortisone-like” metabolites of urine. To facilitate expression, we propose to give to the methods of analysis utilizing this reaction the term of “determination of 17-trioxystero...

Phenolphthalein diphosphate was incorporated into a primary blood agar medium for use in performing quantitative urine cultures. Phosphatase-negative staphylococci, such as Staphylococcus saprophyticus, were differentiated from phosphatase-positive species, such as Staphylococcus epidermidis, by spot testing colonies on filter paper saturated with 1 N NaOH. Phosphatase-positive colonies turned ...

Purple urine-bag syndrome is a rare condition that occurs in patients with indwelling urinary catheters carried over a long period and frequently associated with a urinary tract infection. It is characterized by the appearance of a violet coloration of the probe and/or the urine collection bag. We report the first case in West Africa that occurred in a 47-year-old woman in uremic encephalopathy...

This review presents recommendations for fluid needs and hydration assessment for recreational activity. Fluid needs are based on sweat losses, dependent on intensity and duration of the activity, and will vary among individuals. Prolonged aerobic activity is adversely influenced by dehydration, and heat exposure will magnify this effect. Fluid needs predicted for running 5-42 km at recreationa...

Earlier we described a simple and reliable screening procedure in urine for mucopolysaccharidoses based on the color reaction of glycosaminoglycans (GAGs) with dimethylmethylene blue. At physiological concentrations of urinary protein, we observed an obvious interference by protein in the assay. By modifying the assay, we abolished the protein interference. The modified procedure is not disturb...

background: childhood masturbation (cm) is considered a variant of normal sexual behavior; however, it is commonly misdiagnosed as epilepsy and movement disorders. as the first study from iran, we analyzed a large population of infants and children with cm in a case-control study and evaluated the value of mucus in urine analysis as an alternative diagnostic tool for cm. methods: a total of 623...

The Coomassie Brilliant Blue (CBB) protein dye-binding assay (1) has been favorably assessed for determining the total protein content of urine (2-4), although discrepancies have been noted in its response to different proteins (5) and sample dilution (6). It is commonly accepted that the proteinCBB dye complex is soluble under assay conditions, but our studies reveal loss of color yield after ...

Bouchard and Charrin (1) have observed that the repeated administration of naphthalene to rabbits causes the formation of cataracts. Lesnick (2) has been able to isolate cr-naphthylglycuronate from the urine of dogs which were fed naphthalene. Edelfsen (3) and Igersheimer and Ruben (4) have confirmed the observation of Lesnick (2) by applying color reactions to the urine of dogs which were fed ...

An 87-year-old woman was hospitalized for post-fall syndrome. Even though there was improvement in the post-fall syndrome, she had urinary retention, associated with fecaloma. Urinary catheterization showed acute urinary retention of 500mL. Urine microscopy and culture showed a resistant Escherichia coli strain. Given the absence of both clinical signs (apart from urinary retention) and inflamm...

Background: Laboratory examination of urine (urinalysis) is crucial in establishing various diagnoses. Urine can be done through macroscopic examination, including color, clarity, and microscopic sediment (U-sed) chemical such as glucose. insoluble elements erythrocytes, leukocytes, epithelial cells, thorax, bacteria, crystals, fungi, parasites originating from the blood, kidneys, urinary tract...