During a pre-anaesthetic evaluation of a patient with neck extended, mouth open, and tongue protruded, the patient's uvula is not visible. His airway should be classified as which of the following
Mallampati 1
Mallampati 2
Mallampati 3
None of the above
Since this patient's uvula is not visible, his airway is classed as Mallampati 3, suggesting a difficult intubation.
Preoperative assessment and monitoring in anaesthesia