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FMGE 2011 — Internal Medicine

Q: Gastric lavage is contraindicated in the following:

Kerosene poisoning. ***Kerosene poisoning*** - Gastric lavage is contraindicated in **hydrocarbon poisoning** like kerosene due to the high risk of **aspiration pneumonitis**. [1] - Aspiration of hydrocarbons can lead to severe **chemical pneumonitis**, acute respiratory distress syndrome (ARDS), and even death. *Barbiturate poisoning* - Gastric lavage can be useful in **barbiturate poisoning**, especially if presenting within 1-2 hours of ingestion, to remove unabsorbed drug. - It's part of the management strategy to reduce drug absorption and potentially speed up recovery. *Paracetamol poisoning* - **Gastric lavage** may be considered in paracetamol overdose, particularly if performed within 1-2 hours of ingestion, to remove unabsorbed drug. - However, **activated charcoal** is usually the preferred method for gastric decontamination in paracetamol overdose, followed by **N-acetylcysteine**. *Carbolic acid poisoning* - While typically considered a corrosive, gastric lavage might be cautiously used in **carbolic acid (phenol) poisoning** in specific circumstances, such as very early presentation or large ingestions, but it carries risks of esophageal injury. [2] - Dilution with milk or water is often preferred, but lavage should be avoided if there's evidence of significant caustic injury or perforation risk. [Practice more Internal Medicine PYQs on OnCourse]

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Gastric lavage is contraindicated in the following: