A 64-year-old man presents after ingesting potassium permanganate crystals as a home remedy for leg cramps.

Potassium permanganate ingestion

1. Describe one positive and two relevant negative findings on examination. 3 marks

On assessment, he is alert with only mild retrosternal discomfort, but he is still vomiting intermittently despite ondansetron 8mg and metoclopramide 10mg IV. HR 84, BP 155/90, RR 16, SpO2 98% RA, GCS 15. Chest and abdominal examination is normal.

2. List two initial investigations with justification. 2 marks

Your investigations are normal.

3. How would you decontaminate this ingestion? 2 marks

4. State two factors affecting disposition. 2 marks

5. Apart from disposition, what are your management priorities now? 3 marks