I think (but there are only my thoughts) that Tatiana and Alix had more skills as nurses than poor Olga. She was very sensitive and romantic and she was shocked when she must see the war infected wounds, blood, etc. I 'm a little like her and I understand her. Of course it's a good thing to help wounded people, warriors of your country, but I know that Olga must have been shocked when she saw these people in poor situation, dying, suffering, with worms...I understand why once she must hide to vomite in a towel.
I suppose that Tatiana and Alix were, by far, more self-controlled and skillful. What do you think about that?
RealAnastasia.