Table 2 Measurements of force required to displace the catheter from the needle in Cannula P and I as an indirect measure of static resistance
From: Functional evaluation and practice survey to guide purchasing of intravenous cannulae
Cannula P | Cannula I | Difference | p-value | |
|---|---|---|---|---|
22G static resistance; N | 1.80 (25.2) | 0.39 (28.7) | 1.41 [1.09 to 1.73] | 2 × 10-6 |
20G static resistance; N | 0.73 (40.0) | 0.55 (37.3) | 0.19 [-0.04 to 0.41] | 0.12 |
18G static resistance; N | 2.40 (37.4) | 0.44 (13.3) | 1.96 [1.40 to 2.52] | 7 × 10-5 |