How do CNAs "shave" patients?

As far as I know the only thing you're gonna be shaving is a male resident's face, which is really easy once you've done it once or twice.
My CNA instructor said that the only time we'd do anything other than that is if pubic hair becomes a real "problem" during peri-care, but she said in that instance they probably wouldn't want the CNAs to do the shaving down there anyway (I forget why, but she had a reason.)

We don't shave private areas, we only trim it. If we have to put leads on a male patient to hook him up to a heart monitor, we shave or trim the chest hair so the leads can adhere to the skin. If you stick leads on a hairy chest and take it off, it'll hurt the patient. As for facial shaving, I've done that a several times and I actually enjoy playing barber. If it's an elderly male, you have to be careful with loose skin under the neck. Other difficult areas are the chin and under the nose. The razors at my job are generic, so I have to change them frequently. At my facility, we are not permitted to shave patients who are on a anticoagulant.

We also shave women! You'd be amazed at how much hair they grow on their faces!

I've only shaved one woman before! Had another female patient with a FULL BEARD- but she shaved it off herself. She didn't even use any water or shaving cream- just a dry razor.

A lot of old people have barely any body hair left to begin with, but even those with a lot of pubic hair don't normally get shaved or trimmed.