Which Mallampati class corresponds to the most difficult visualization of airway structures?

• A. Class I
• B. Class II
• C. Class IV
• D. Class III

Answer: (C)

Mallampati scoring looks at how much of the oropharyngeal anatomy you can see when the patient opens wide and protrudes the tongue. The higher the grade, the less you can see and the harder the laryngoscopic view tends to be. The most difficult visualization occurs when only the hard palate is visible and the soft palate, uvula, and tonsillar pillars are not seen at all. This high-grade finding flags a potentially challenging intubation and prompts planning for airway strategies such as advanced preparations or alternative devices to ensure a safe airway. Lower grades show more structures visible and generally predict easier visualization.