Fluoroacetamide (FAM) has been employed as a rodenticide for an extended duration, leading to a multitude of incidents involving human ingestion poisoning. Currently, FAMs have been prohibited by nations globally; however, there are still instances of their illegal usage. Conventional instrument methods are characterized by their time-consuming nature and complex operational procedures, rendering them inadequate for meeting urgent diagnostic needs in patients with acute FAM poisoning. Therefore, there is an immediate need to develop a prompt, user-friendly, and precise immunoassay method for the diagnosis of acute poisoning induced by FAM. A lateral flow immunochromatography assay (LFIA) was developed in this study for the visual detection of FAMs in blood samples, representing the first report of such an approach. The method exhibited a cut-off value of 0.5 mg/mL under the optimized conditions, enabling the entire FAM detection process in blood samples to be completed within a mere 8 min without any pretreatment requirements. Notably, the results were easily discernible by visual inspection alone. These results indicate that the developed LFIA holds great promise as a convenient and rapid diagnostic tool for FAM poisoning diagnosis, thereby offering valuable support for subsequent treatment strategies.
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Li et al. (2024) studied this question.
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