Answer:She need to sit down with her husband and let him be aware of all the safety precautions that are taken when someone works as an EMT.
He may be at ease knowing that there are major precautions that are put in place to ensure the safety of all EMTs.
The second thing is to let him know about the trainings that she had to go through before she started the job .
This may explain to the husband that her wife is well trained to know when to not risk her life and there are also safety measures in place to protect her in those situations that may be beyond the normal situation .
She may even bring a sample video that show how EMTs work and how they get protected .