The size of a tracheostomy tube can be described in several ways.
|
Jackson Size |
French Size |
External Diameter in mm |
Internal Diameter in mm |
|
00 |
13 |
4.5 |
2.5 |
|
0 |
15 |
5.0 |
3.0 |
|
1 |
16.5 |
5.5 |
3.5 |
|
2 |
18 |
6.0 |
4.0 |
|
3 |
21 |
7.0 |
4.5 - 5.0 |
|
4 |
24 |
8.0 |
5.5 |
|
5 |
27 |
9.0 |
6.0 - 6.5 |
|
6 |
30 |
10.0 |
7.0 |
|
7 |
33 |
11.0 |
7.5 - 8.0 |
|
8 |
36 |
12.0 |
8.5 |
|
9 |
39 |
13.0 |
9.0 -9.5 |
|
10 |
42 |
14.0 |
10.0 |
|
11 |
45 |
15.0 |
10.5 - 11.0 |
|
12 |
48 |
16.0 |
11.5 |
