Regarding paraquat poisoning

• A. The interval between ingestion and death is usually hours because of immediate pulmonary toxicity
• B. Mechanism of action involves single electron oxidation of the herbicide to free radical species
• C. Probable human lethal dosage is 50-500mg/kg
• D. Oxygen high flow stops the pulmonary lesions occurring
• E. Paraquat doesn t affect hepatic or renal functions