The biggest cannula, based on the provided reference, is orange.
The provided reference details cannula sizes and their corresponding colors, uses, and gauges. The gauge refers to the size of the cannula; the lower the gauge number, the larger the cannula.
Here's a table summarizing the relevant information:
Colour | Size (Gauge) | Use |
---|---|---|
Orange | 14G | Large bore access – emergency |
Grey | 16G | Large bore access – emergency |
White | 17G | Blood transfusions and IV medication/fluids |
Green | 18G | Blood transfusions and IV medication/fluids |
As the table shows, the orange cannula is 14G, which is the largest gauge listed, making it the biggest cannula in this context. These large-bore cannulas (14G and 16G) are typically used in emergency situations when rapid fluid or blood administration is crucial.