Q. Regarding paraquat poisoning (Solved)

1. The interval between ingestion and death is usually hours because of immediate pulmonary toxicity

2. Mechanism of action involves single electron oxidation of the herbicide to free radical species

3. Probable human lethal dosage is 50-500mg/kg

4. Oxygen high flow stops the pulmonary lesions occurring

5. Paraquat doesn’t affect hepatic or renal functions