| Venturi before (No. = 20) | Venturi after (No. = 20) | Paired t-test | |||
Mean | SD | Mean | SD | T | P-value | |
Heart rate | 107.50 | 8.751 | 103.40 | 12.365 | 2.732 | 0.013 |
Respiratory rate | 22.1 | 4.051 | 20.1 | 4.229 | 4.414 | 0.000 |
Systolic blood pressure | 144.50 | 22.355 | 137.50 | 26.926 | 1.629 | 0.02 |
Diastolic blood pressure | 86 | 10.954 | 85 | 13.179 | 0.567 | 0.577 |