CHEMICAL
EXAMINATION OF
URINE
CHAPTER 5
,REAGENT STRIPS
• Reagent strips are used to perform the routine chemical
tests on urine
• Strips consist of chemical-impregnated absorbent pads on
a plastic strip
• Test performed for: pH, protein, glucose, ketones, blood,
bilirubin, urobilinogen, nitrite, leukocyte esterase, specific
gravity (SG)
• Single and multitest strips available
,REAGENT STRIPS (CONT’D)
• The two major types of reagent strips are sold under the
names Multistix and Chemstrip.
• Some variations occur between the strips with regard to
sensitivity and specificity and interfering substances; users
should be familiar with the product literature
• Reagent strips are also used with automated instruments
, REAGENT STRIPS (CONT’D)
• Color comparison charts are supplied by the manufacturer
• Several degrees of color are shown to provide
semiquantitative readings of neg, trace, 1+, 2+, 3+, and 4+
• Estimates of mg/dL are also provided for many of the test
areas
EXAMINATION OF
URINE
CHAPTER 5
,REAGENT STRIPS
• Reagent strips are used to perform the routine chemical
tests on urine
• Strips consist of chemical-impregnated absorbent pads on
a plastic strip
• Test performed for: pH, protein, glucose, ketones, blood,
bilirubin, urobilinogen, nitrite, leukocyte esterase, specific
gravity (SG)
• Single and multitest strips available
,REAGENT STRIPS (CONT’D)
• The two major types of reagent strips are sold under the
names Multistix and Chemstrip.
• Some variations occur between the strips with regard to
sensitivity and specificity and interfering substances; users
should be familiar with the product literature
• Reagent strips are also used with automated instruments
, REAGENT STRIPS (CONT’D)
• Color comparison charts are supplied by the manufacturer
• Several degrees of color are shown to provide
semiquantitative readings of neg, trace, 1+, 2+, 3+, and 4+
• Estimates of mg/dL are also provided for many of the test
areas
