Table 1 Measurements of resistance through the needle in Cannula P and I
From: Functional evaluation and practice survey to guide purchasing of intravenous cannulae
Cannula P | Cannula I | Difference | p-value | |
|---|---|---|---|---|
22G resistance; mmHg.L-1.hr-1 | 728 (3.7) | 421 (3.6) | 307 [289 to 325] | 2 × 10-14 |
20G resistance; mmHg.L-1.hr-1 | 287 (6.3) | 152 (3.1) | 135 [125 to 144] | 3 × 10-10 |
18G resistance; mmHg.L-1.hr-1 | 71 (2.4) | 44 (4.7) | 27 [26 to 28] | 1 × 10-16 |