Urinalysis - Clinical Pathology and Procedures - Merck ...
The ketone test pad detects acetone and acetoacetic acid, but not β-hydroxybutyrate (which can be measured in blood and urine using a point-of-care instrument or a biochemistry analyzer). The test pad contains nitroprusside that reacts with acetoacetic acid and acetone to cause a purple color change; it is more sensitive to acetoacetic acid ...
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