hi,i am currently practicing cgfns questions (exam coming nov 11th!!). i think it is a mistake from the cgfns book (which, unfortunately, is quiet common on the cgfns practice guide) but i wanted to make sure i was not missing some information.here is the question:the nurse preceptor should intervene if the caring for an rh-neg mother tells the mother that she would need to receive rho (d) immune globulin (rhogam) within 72 hours of: a. delivery of an rh negative, coombs positive infantb. abortion or miscariagec. delivery of an intrauterine fetal demised. delivery of an rh positive infantanswer:a. the nurse preceptor should intervene if the nurse caring for the rh-neg mother who delivers an rh-neg, coombs positive infant tells the mother that she needs rhogam within 72 hours. the nurse preceptor needs to explain to the nurse that rhogam is not needed because the infant's coombs is positive. if the infant's cord blood direct coombs test was negative, then the nurse would give rhogam because this indicates that an ag-antibody response has not already occurred.obviously by process of elimination you can come up with the right answer. i just wanted to make sure that it is a mistake and that they meant a rh+ baby. there is no way a rh- mum with a rh- baby give a positive coombs test right? or am i forgetting a possible scenario here?it is very annoying to have so many mistakes in a study guide. there is even several examples where 2 of the exact same question have different answers supported by different explanation (especially in psychiatry) then you don't really know what to think!anyway, thanks for any help.