Welcome to the Wefugees community and thank you for your question.
I am not too familiar with the requirements for the nursing “Ausbildung”, but tried to make some research. As far as I understood, they sometimes ask for a prior internship in this field before you apply for the Ausbildung (apprenticeship). However, this seems to vary as well.
Do you have a certain school/program etc. already in mind? In case and if you want to share it with us, I would be happy to support you in understanding the conditions.
All the best,