If your nursing duties include heavy lifting, moving patients, and similar duties, then you will be advised not to do this for 6-8 weeks after your surgery. However, if you could modify your return to work and temporarily be on light duty schedule, then you could be back at work by 2-3 weeks. Discuss with your plastic surgeon.
Thank you for your question and congratulations on your upcoming surgery. After a tummy tuck and muscle repair it's typically recommended that you not lift greater than 10-15 pounds for six weeks. If you are able to avoid lifting/transfers/etc, I would anticipate that you would be back at work after 2-3 weeks. Speak with your surgeon about their exact recommendations.