@plbelanger are you using the Mayo Patient Portal? I believe their goal is to respond to secure messages within two business days though, depending on the question, you may get your response sooner. I've usually gotten responses within 1 day, sometimes sooner.

Connecting through Secure Messages: https://connect.mayoclinic.org/page/chest-surgery/newsfeed-post/how-to-connect-with-your-care-team/