three of four patients ( 75 % ) who had an ischemic electrocardiogram with pain had a positive ergonovine test while only 1 of 27 ( 4 % ) patients who had a nonischemic electrocardiogram during chest pain had a positive ergonovine test ( p less than 0.001 ) pain that occurred predominantly at rest was present in five of five patients with positive ergonovine tests but pain occurring predominantly at rest was also present in 76 % of patients with negative ergonovine tests ( 85 % ) .
C0008031
chest pain
C0030193
pain