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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]
[129] [130] The blood ketone test strips are very expensive; prices start at about US$50 for ten strips. [131] It is most likely urine test strips–either ones that test only for ketones or ones that test for both glucose and ketones in urine would be used. The table above is a guide to when ketones may be present.
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]
Reference ranges for urine tests are described below: Measurement Lower limit Upper limit Unit Urinary specific gravity: 1.003 [1] [2] 1.030 [1] [2 ... Glucose: n/a ...
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 ...
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.
Urine cytology; Urine electrolyte levels; Urine organic acids; Urine protein/creatinine ratio; Urine specific gravity; Urine test; Urine test strip; Template:Urine tests; Urine urea nitrogen; Urodynamic testing; Uroscopy
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 ]
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