A neighbor, Mrs. G., age 62, tells you that she “doesn’t feel right” and is suddenly tired for no apparent reason. She denies having chest pain, though she admits to a “full” feeling she calls...

A neighbor, Mrs. G., age 62, tells you that she “doesn’t feel right” and is suddenly tired for no apparent reason. She denies having chest pain, though she admits to a “full” feeling she calls indigestion. You suspect that she may be having a heart attack. What question can you ask to help you be more sure? Explain the physiological basis for your question.