Lesson 5 4 Chemical Examination of Urine Urine

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Lesson 5 -4 Chemical Examination of Urine

Lesson 5 -4 Chemical Examination of Urine

Urine Chemical Tests Reagent strips • Multiple tests on one strip CLIA-waived Rapid results

Urine Chemical Tests Reagent strips • Multiple tests on one strip CLIA-waived Rapid results

Urine Chemical Tests Color end-point Timed

Urine Chemical Tests Color end-point Timed

Principles of Reagent Strip Tests Glucose Bilirubin Ketones

Principles of Reagent Strip Tests Glucose Bilirubin Ketones

Principles of Reagent Strip Tests Blood p. H Protein Urobilinogen

Principles of Reagent Strip Tests Blood p. H Protein Urobilinogen

Principles of Reagent Strip Tests Nitrite Leukocyte esterase Specific gravity Reference values • See

Principles of Reagent Strip Tests Nitrite Leukocyte esterase Specific gravity Reference values • See Table 5 -11

Special Reagent Strips Glucose Ketones Microalbumin h. CG

Special Reagent Strips Glucose Ketones Microalbumin h. CG

Copper Reduction and Confirmatory Tests Reducing sugars Protein precipitation Bilirubin Ketones

Copper Reduction and Confirmatory Tests Reducing sugars Protein precipitation Bilirubin Ketones

Reagent Strip Procedure Safety precautions Quality assessment • Specimen Room temperature Well-mixed • Reagent

Reagent Strip Procedure Safety precautions Quality assessment • Specimen Room temperature Well-mixed • Reagent strips • Urine controls

Reagent Strip Procedure Manual method

Reagent Strip Procedure Manual method

Reagent Strip Readers Varying capacities

Reagent Strip Readers Varying capacities

Using the Clinitek Status

Using the Clinitek Status

Copper Reduction Test Clinitest • • Detects reducing sugars Use for sugars other than

Copper Reduction Test Clinitest • • Detects reducing sugars Use for sugars other than glucose Galactosuria Caustic reagent

Copper Reduction Test

Copper Reduction Test

Confirmatory Tests Protein • Acid precipitation Dilute acetic acid Dilute sulfosalicylic acid • Albumins

Confirmatory Tests Protein • Acid precipitation Dilute acetic acid Dilute sulfosalicylic acid • Albumins and globulins react • Amount of precipitation proportional to protein concentration • Grade reaction: trace, 1+ to 4+

Confirmatory Tests Ketones – Acetest Bilirubin – Ictotest

Confirmatory Tests Ketones – Acetest Bilirubin – Ictotest