Negative paraquaturia does not exclude paraquat fatal poisoning.

Rita Monteiro, Lurdes Correia, Adélia Simão, Armando Carvalho, J Nascimento Costa


The authors present a case report of fatal paraquat poisoning demonstrating persistently negative urine paraquat test. A brief review is also made, concerning the importance of blood test for paraquat, the false negative results in urine test and the need for new effective therapeutic approaches that can change the tragic course of most of these poisoning cases.

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