Evaluation of Ketostix for plasma acetoacetate.
Acetoacetate in plasma is measured conveniently by Ketostix (Ames, Miles Laboratories, Elkhart, IN), a reagent strip test. The color formed on the reactive tip by the acetoacetate after 15 seconds is compared with the color chart provided for quantitation. When the concentration is between 4 to 12 mmol/L, the authors recommend a reassay using a diluted sample and both results averaged. Results thus determined agreed well with those obtained by a GC method. Analyst bias in color matching is not a serious problem. Ketostix stability and user performance are discussed in relation to quality control.
D000090:Acetoacetates / Q000097:blood*; D006801:Humans; D007202:Indicators and Reagents; D008722:Methods; D011934:Reagent Strips
D000090:Acetoacetates; D007202:Indicators and Reagents; D011934:Reagent Strips; C016635:acetoacetic acid