From: A cross-sectional study of Victorian mobile intensive care ambulance paramedics knowledge of the Valsalva manoeuvre
Duration
n
%
<5 seconds
1
2.2
5-10 seconds
11
23.9
11-15 seconds
8
17.4
>15 seconds
7
15.2
As long as you can.
16
34.8
Other
3
6.5
Total
46
100.0