Anaesthesia The following is true of Mendelson’s syndrome A Critical Volume of aspirate is 50 ml B Critical pH of gastric aspirate is 1.5 C Onset of symptoms generally occurs within 2 hours D Opioids have been shown to improve outcome 💡 Explanation The following is true of Mendelson's syndrome ✓ Correct Answer: C. Onset of symptoms generally occurs within 2 hours