Abstract

When investigating a death potentially due to diabetic ketoacidosis (DKA), it is challenging to assess the glucose level in the blood, but β-hydroxybutyrate, the most prevalent ketone body in the blood, is relatively stable after death. The aim of this project is to prove that a commercially available ketone meter can be used on postmortem blood samples to aid the diagnosis of DKA in a novel setting (during coroner/medical examiner examination). Samples with acetone detected via gas chromatography were chosen retrospectively to determine whether the meter could detect ketones in postmortem blood (proof-of-concept). In all of the thawed samples, the meter detected an elevated ketone level. Samples were then obtained in a prospective manner to include those with a possible cause of death from DKA along with controls. We correctly identified 16 cases in which death was due to DKA with use of the ketone manner. The ketone levels ranged from 2.6 to 5.4 mmol/L in those cases. The diagnosis was confirmed with a greatly elevated vitreous glucose concentration or glycated hemoglobin concentration. Detecting the presence of ketones while in the autopsy suite allowed for more accurate preliminary diagnoses and utilization of resources.

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