I sometimes work in departments other than my home shop. One of the problems I often encounter is needing to do procedures with kit that I’m unfamiliar with.
The most recent situation involved doing an ascitic tap. The shop I was working at didn’t have any angiocaths or dedicated paracentesis kits suitable for a timely therapeutic tap. A central line might have done the trick, but have made the frustrating mistake of using a CVC to drain a pleural effusion once; resistance make drainage agonisingly slow. The patient was obese as well as ascites-laden and the longest cannula I could find was 32mm – enough to penetrate the peritoneum (just!) but not long enough to reliably facilitate drainage without outward migration.
In the end what I did was wire the cannula and insert a rapid infusion catheter. With its build-in dilator/stiffener it got into the peritoneal cavity easily and drained the ascites at a very respectable rate. The patient found it very comfortable although the hole it left was a bit leaky for a short time afterwards.