Complex sentence: The conversion of B-OHB to acetoacetate catalyzed by the enzyme reduces the NAD + to NADH, generating an electrical change, the magnitude of which can then be used to extrapolate the amount of beta-hydroxybutyrate in the sample.
Split into simpler sentences: The conversion of B-OHB to acetoacetate catalyzed by the enzyme reduces the NAD + to NADH, generating an electrical current. The magnitude of the current can then be used to extrapolate the amount of beta-hydroxybutyrate in the sample.