I don't care if you were a girl or boy scout. Elevate above the heart. A pressure bandage is snug, but does not cut off circulation . Think of it as the difference in a pair of panty hose vs. a girdle. Body parts that come off Treat as you would for a cut, expect be sure you seek medical attention.
Modern medicine can reattach a lot of body parts.
Just ask Mr. Bobett. The part should be placed in a baggie, and iced Just like you do to boiled shrimp. Don't forget to sent the part with the victim. Choking Don't hit the person across the back. If you feel you must hit the person wait until he quits choking and do it then.