Predictors of Nasal Obstruction: Quantification and Assessment Using Multiple Grading Scales

Figure 1

Inferior turbinate sizes. (a) Grade 1 (0%–25% of total airway space). (b) Grade 2 (26%–50% of total airway space). (c) Grade 3 (51%–75% of total airway space). (d) Grade 4 (76%–100% of total airway space). Reproduced with permission [2].

(a)

(b)

(c)

(d)