Unfortunately, no. Having cystic fibrosis usually results in recurrent chest infections and nutritional problems including anaemia. For your safety, you won’t be able to donate.
Don't be disappointed though, because there are other ways you can help. You can spread the word about how blood saves lives on social media (find us @lifebloodau), register your intent to be an organ donor (if you’re 16 or over), or support the great humanitarian work of the Australian Red Cross.