Most likely it will take 30 days at least. CNA is not a fast moving nimble company.

It's a good idea to follow up within 1-2 weeks after your CNA interview. Send a polite email or make a phone call to express your continued interest in the position. Remember to stay patient and positive throughout the process. In the meantime, consider exploring other opportunities on Jobcase, as well as other job search providers, to keep your options open.