What is Paraquat Poisoning? Causes, Symptoms, Tests & Treatments
Overview of Paraquat Poisoning
Paraquat dichloride is a toxic chemical used as an herbicide primarily for weed and grass control. According to the U.S. Environmental Protection Agency (EPA), Paraquat is responsible for approximately 1–2 deaths annually in the United States. The Centers for Disease Control and Prevention (CDC) warns that there is no known antidote for Paraquat poisoning.
Causes of Paraquat Exposure
- Intentional ingestion
- Accidental ingestion
- Occupational exposure
- Environmental exposure
Learn more about causes from MedlinePlus.
Symptoms of Paraquat Poisoning
Early Symptoms (First 24 hours)
- Burning mouth and throat
- Nausea and vomiting
- Abdominal pain
- Ulcers
Later Symptoms (2–7 days)
- Respiratory distress
- Cyanosis
- Kidney/liver failure
Details found in this PMC case study.
Exams and Diagnostic Tests
| Test | Purpose |
|---|---|
| Plasma Paraquat Level | Confirm toxicity |
| Chest Imaging | Assess lung fibrosis |
| Blood/Urine Tests | Monitor organ function |
Treatment for Paraquat Poisoning
- Activated charcoal
- IV hydration
- Hemoperfusion
- Antioxidants
- Corticosteroids
Research ongoing at ClinicalTrials.gov.
Prevention and Regulations
- Restricted access
- Safety labeling
- Proper PPE
More in Wikipedia's Paraquat article.
Conclusion
Paraquat poisoning is fatal and lacks an antidote. Caution, regulation, and immediate care are crucial. Refer to EPA, CDC, and MedlinePlus for updated guidelines.
