| Grade | Description |
|---|---|
| 1 | Glottis is clearly visible. |
| 2 | Only the posterior part of the glottis is visible. |
| 3 | Only the epiglottis is visible (glottis is not visible). |
| 4 | Both the glottis and epiglottis are not visible. |
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| Grade | Description |
|---|---|
| 1 | Glottis is clearly visible. |
| 2 | Only the posterior part of the glottis is visible. |
| 3 | Only the epiglottis is visible (glottis is not visible). |
| 4 | Both the glottis and epiglottis are not visible. |