Pls! nurse took blood sample without gloves or mask even when i asked; her saliva landed on my skin right before the needle entry. can that infect me?

No worries: No worries, there is a very very VERY low risk due to most health professionals will have proper shots done but I do not like the fact that she did not comply with proper technique. I would contact the manager and have them do a test (free of charge) to help ease your mind. If they won't then talk to your state board about options. No worries