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Adults generally have a specific gravity in the range of 1.010 to 1.030. Increases in specific gravity (hypersthenuria, i.e. increased concentration of solutes in the urine) may be associated with dehydration, diarrhea, emesis, excessive sweating, urinary tract/bladder infection, glucosuria, renal artery stenosis, hepatorenal syndrome, decreased blood flow to the kidney (especially as a result ...
The urine test strip test for specific gravity is based on the change in dissociation constant (pK a) of an anionic polyelectrolyte (poly-(methyl vinyl ether/maleic anhydride)) in an alkali medium that is ionised and releases hydrogen ions in proportion to the number of cations present in the solution. [6]
It is not possible for the kidneys to produce urine with a specific gravity greater than 1.040 [40] but such readings can occur in urine that contains high-molecular weight substances, such as contrast dyes used in radiographic imaging. [38] Specific gravity is commonly measured with urine test strips, but refractometers may also be used. [41]
Urinary specific gravity: 1.003 [1] [2] 1.030 [1] [2] g/mL Urobilinogen: 0.2 [2] 1.0 [2] Ehrlich units or mg/dL Free catecholamines, dopamine: 90 [3] 420 [3] μg/d Red blood cells (RBCs) 0 [4] [2] 2 [2] - 3 [4] per High Power Field (HPF) RBC casts: n/a 0 / negative [2] White blood cells (WBCs) 0 [2] 2 [2] pH: 5 [2] 7 [2] (unitless) Protein: 0 ...
A urinalysis can detect nitrogenous wastes of the ... Pinkish urine can result from the consumption of ... Human urine has a specific gravity of 1.003–1.035. ...
A urine test is any medical test performed on a urine specimen. The analysis of urine is a valuable diagnostic tool because its composition reflects the functioning of many body systems, particularly the kidneys and urinary system , and specimens are easy to obtain. [ 1 ]
Isosthenuria refers to the excretion of urine whose specific gravity (concentration) is neither greater (more concentrated) nor less (more diluted) than that of protein-free plasma, typically 1.008-1.012. [1] Isosthenuria reflects damage to the kidney's tubules or the renal medulla.
Osmolality is measured by osmometer, which evaluates the freezing point depression of a solution and supplies results as milliosmoles per kilogram of water while specific gravity is measured by colorimetric strips, refractometer, hydrometer and pyknometer.