One of my large emergency medical kits came with sutures and stats.
In a pinch, I could probably do it, as long as the sew-ee didn’t wiggle around too much.
But if it was arterial or vascular tearing, they’d be pretty much out of luck.
I’m thinking more and more that the best stuff to have would be good bandages, soap and water, a strong anti-bacterial, and a quart of super-glue!
I’m sorry, I can’t remember the name, but there is a shipboard medical guide that can talk you thru anything. You can frequently see it listed in a sailing magazines book ad’s geared to long distance cruisers. I worked on int’l merchant ships for 6 years and we had the same book and the mate’s swore by it, however everybody usually got out of the way and let the cook take care of things. That drunk old fart could do a nice stitch job.