If screening study is positive for CAD:

Myocardical infarction during pregnancy is associated with adverse maternal and fetal outcomes including maternal and fetal demise. Though prognosis has lately improved, high maternal (11%) and fetal (9%) mortality rates continue to be observed. Therefore:

R 1.8b If CAD is present, its severity should be ascertained, treatment instituted and counseling provided as to the potential risks of pregnancy to the woman and fetus before withdrawing contraception or otherwise start trying to conceive. (1++++)