What does the black marker on the hub of the Axium system needle indicate?

The black marker on the hub of the Axium system needle is specifically designed to indicate the direction of the bevel. This is a critical feature for practitioners because the orientation of the bevel affects how the needle penetrates tissue during procedures. Proper positioning ensures optimal efficiency in achieving the desired outcome, whether it is for insertion into a specific area or to facilitate accurate and safe delivery of medications or other treatments.

The other options relate to different aspects of the needle or its function, but they do not accurately describe the purpose of the black marker. For instance, while the depth of insertion is important in various medical procedures, it is commonly guided by other markers on the needle. The type of lead and the size of the needle are also crucial for different applications, but the black marker's function specifically pertains to guiding the user regarding the bevel's orientation.