A urinalysis is a group of physical, chemical, and microscopic tests. Urine is produced by the kidneys. Urine is generally yellow and relatively clear, but each time a person urinates, the color, quantity, concentration, and content of the urine will be slightly different because of varying constituents.
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On the other hand, dehydration, or any condition that increases water reabsorption in the kidney, results in a high specific gravity. The normal specific gravity for urine is 1. Procedure Using a Urinometer Urinometer is more commonly used to measure specific gravity.
The present invention relates to a test strip for the determination of the ionic strength or specific gravity of an aqueous sample, especially of urine. The invention provides an easy way of analyzing the ionic strength or specific gravity whereby test results can be evaluated momentarily by observing the color formation and change in the test area on the strip after simply dipping it to the test solution. The evaluation can also be carried out with the aid of appropriate apparatus.
If your institution subscribes to this resource, and you don't have a MyAccess Profile, please contact your library's reference desk for information on how to gain access to this resource from off-campus. Examination of specimens of urine, blood, and genitourinary secretions or exudates commonly directs the subsequent urologic workup and frequently establishes a diagnosis. Judicious use of such tests permits rapid, accurate, and cost-effective determination of the probable diagnosis and directs the management of patients with urologic disease.
All laboratory tests begin with proper sample collection and handling. Improper collection and handling of blood samples can result in unreliable or—in worse cases—misleading results. Stress or patient excitement at the time of collection can als.
In cases where it is necessary or would be desirable to use a smaller sample, the method of McCullough et al. Distillation range: The difference between the temperature observed at the start of a distillation and that observed at which a specified volume has distilled, or at which the dry point is reached. Initial boiling point: The temperature indicated by the distillation thermometer at the instant the first drop of condensate leaves the end of the condenser tube.
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