Optimal Central Line Lengths
Right IJ
- male: 12-13cm
- female: 11-12cm
Left IJ
- male: 13-14cm
- female: 12-13cm
source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2823099/
Or calculate using following table:

source: https://litfl.com/central-venous-catheters/
Anatomy of Lines
- Lines have additions to make them better
- A connector is added for easier access for aspiration/flushing. They can prevent blood return/spillage but still allows you to flush/aspirate.
- A cap is used to close the line in a sterile environment when not in use