According to BLS, median annual income for Registered Nurses is 81k, compared with 61-62k for teachers. Higher, but nowhere near 2-3 times.
https://www.bls.gov/ooh/healthcare/registered-nurses.htm
https://www.bls.gov/ooh/Education-Training-and-Library/Kinde...
https://www.bls.gov/ooh/education-training-and-library/middl...
https://www.bls.gov/ooh/education-training-and-library/high-...