Gastric Lavage Contraindications Analysis

Gastric lavage involves washing out the stomach contents. It is used to remove ingested poisons but is not suitable for all situations. Contraindications exist when the risks of the procedure outweigh potential benefits.

Poisoning Scenarios and Lavage

The suitability of gastric lavage depends on the specific substance ingested and the risks involved:

• 1. Corrosive Poisoning: Substances like strong acids or alkalis cause severe burns. Performing gastric lavage can lead to re-exposure, increasing the risk of perforation or worsening esophageal and gastric injury. Therefore, it is contraindicated.
• 2. Organophosphorus Poisoning: While specific protocols exist, gastric lavage is often considered, especially if performed soon after ingestion, to remove residual insecticide. It is generally indicated, not contraindicated.
• 3. Iron Intoxication: Gastric lavage may be considered in significant iron overdose, although other treatments are primary. It is not typically listed as a strict contraindication.
• 4. Turpentine Oil Ingestion: Turpentine oil is readily absorbed and poses a significant risk of aspiration, potentially leading to chemical pneumonitis. Due to this high aspiration risk, gastric lavage is generally contraindicated.

Conclusion on Contraindications

Based on the analysis, gastric lavage is contraindicated in:

• Corrosive poisoning (1)
• Turpentine oil ingestion (4)

Therefore, the correct option combining these is 4 and 1.