Wouldn't say I was really schooled in how to use it... just observation. I doubt I'd tell you anything you don't already know. You inject lidocaine into the entire surrounding area of where you need to cut/suture. Same as getting a cavity filled at the dentist or a cut sewed at the doctor's; they use lidocaine there too. If it's an open wound just inject into the sides of the cut.
I used 20cc's on a 6" incision per my vet's advice and it appeared to be sufficient (no reaction from cow while I worked). I saw it used recently on a dog with a 4" laceration on the hock, and we used around 15-20cc in the sides of the cut before stitching it up. Now, for big surgeries... my vet uses right around 200cc's of lidocaine on a DA surgery (similar incision to a c-section; about 12" and stays open about an hour). It's administered SC in a dozen or so injection sites, no more than 4-6" from where the actual incision will be.
I'm not sure on exact timing for how long to wait between injecting lidocaine and beginning work on the animal. My last trip to the dentist they waited at least 5 minutes. On DA surgeries they wait 5-10 minutes depending on whether or not they're in a hurry, LOL. With the dog I mentioned the vet waited about 3 minutes, maybe not even that much.
I used 20cc's on a 6" incision per my vet's advice and it appeared to be sufficient (no reaction from cow while I worked). I saw it used recently on a dog with a 4" laceration on the hock, and we used around 15-20cc in the sides of the cut before stitching it up. Now, for big surgeries... my vet uses right around 200cc's of lidocaine on a DA surgery (similar incision to a c-section; about 12" and stays open about an hour). It's administered SC in a dozen or so injection sites, no more than 4-6" from where the actual incision will be.
I'm not sure on exact timing for how long to wait between injecting lidocaine and beginning work on the animal. My last trip to the dentist they waited at least 5 minutes. On DA surgeries they wait 5-10 minutes depending on whether or not they're in a hurry, LOL. With the dog I mentioned the vet waited about 3 minutes, maybe not even that much.