1. Laryngoscopic view grading system as initially developed by Cormack and Lehane.12 A: Grade I, the glottis is completely visible.
Laryngoscopic view grading system as initially developed by Cormack and Lehane.12 A: Grade I, the glottis is completely visible. B: Grade II, only the posterior commissure or posterior portion of the laryngeal aperture is visible. C: Grade III, only the epiglottis is visible. D: Grade IV, no glottic structures are visible, only the soft palate.
Stephen R Collins Respir Care 2014;59:
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