Measuring ketones in urine
It detects acetoacetate.
Results read from a color chart are
race (5 mg/dL),
mall (15 mg/dL),
oderate (40 mg/dL)
and large (80-160 mg/dL).
User timing is required.
Read color at exactly 15 seconds after
removing reagent strip from urine.
Proper read time is critical for optimal results.
Must ignore color
changes that occur after 15 seconds.
False-negative results when sticks have been exposed to air och
after eating much vitamin C (acidic urine)