Laryngeal mask airway
Chart
| Mask Size |
Weight (kg) |
Age (yr) |
LMA length (cm) |
LMA Cuff Vol (mL) |
Largest ETT^ (mm) |
| 1 | <5 |
<0.5 |
10 |
4 |
3.5 |
| 1.5 |
5-10 |
<1 |
10 |
5-7 |
4 |
| 2 |
6.5-20 |
1-5 |
11.5 |
7-10 |
4.5 |
| 2.5 |
20-30 |
5-10 |
12.5 |
14 |
5 |
| 3 |
30-60 |
10-15 |
19 |
15-20 |
6 |
| 4 |
60-80 |
>15 |
19 |
25-30 |
6.5 |
| 5 |
>80 |
>15 |
19 |
30-40 |
7 |
^Largest ETT that can pass thorough LMA
Source
Tarascon Adult Emergency Pocketbook