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10 Cards in this Set
- Front
- Back
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pH PRINCIPLE pH false pos. pH false neg. clinical significance reference range |
-double pH indicator system
-none -none -alkaline =old urine, seen after eating -4.5-8.0 (random urine) -5.0 - 6.0 (1st void in the morning) |
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protein principle protein false pos. protein false neg. clinical significance |
-protein error of indicators -highly alkaline urine -high salt -proteinuria = best single indicator of early disease. glomelular involvement |
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glucose principle glucose false pos. glucose false neg. clinical significance |
-double sequential enzyme ( oxidase method) -bleach -ascorbic acid, ketones, high SPG w/low pH -diabetes mellitus |
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ketones principle ketones false pos. ketones false neg. clinical significance |
-Na nitroprusside + ketones = purple color -high pigmented urine, levapoda metabolites -ascorbic acid, increase SG -uncontrolled diabetes mellitus, high protein diet, dehydration |
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blood principle blood false pos. bloodfalse neg. clinical significance |
-peroxidase activity of heme -bleach -ascorbic acid, ketones, high SPG w/low pH -hematuria, hemoglobunuria, myoglobin |
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bilirubin principle bilirubinfalse pos. bilirubin false neg. clinical significance |
-diazonium salt + bilirubin = blue/purple color -medication color -ascorbic acid, increase sp g, nitrite |
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urobilinogen principle urobilinogen false pos. urobilinogen false neg. clinical significance |
-Ehrlich's reaction, para-dimethlaminobinzaldehyde + urobilinogen = peach to pink -highly pigmented urine, medications -nitrite -liver damage, hemolytic anemias |
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nitrite principle nitrite false pos. nitrite false neg. clinical significance |
-Diazo reaction w/para-arasanilic acid -medication color -ascorbic acid -bacteria (UTI) |
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leukocytes principle leukocytes false pos. leukocytes false neg. clinical significance |
-diazo reaction by catalyzed hydrolysis of acid esters -bleach, pigment urine -ascorbic acid, glucose, protein, high SG, antibiotics -UTI, inflammation of urinary tract |
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specific gravity principle specific gravity false pos. specific gravity false neg. clinical significance |
-pka change of polyelectrolyte -protein -alkaline urine -decrease diabetes insipidus, radiopaque dye |
