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Table 2 Outer diameter and length of the investigated catheters (BD Venflon™ Pro Safety)

From: Determining optimal needle size for decompression of tension pneumothorax in children – a CT-based study

  Outer Diameter Length
24G 0.07 cm 1.9 cm
22G 0.09 cm 2.5 cm
20G 0.11 cm 3.2 cm
18G 0.13 cm 4.5 cm
16G 0.18 cm 4.5 cm