I have just completed a home study course for 30 ceu's. The subject was Substance Abuse. Even with multiple decades in Adult ICU several factors have intervened and I am now working in a drug rehab center for L.A. County. (No, I didn't use.)
The first statement was interesting,"It is likely you will become a co-dependent if you work in the health care field". In a later section, the explanation followed. The healthcare worker takes on the role of co-dependent at work because the patient is in a dependent situation, and subject to your control of their world.
In the ICU theater the nurse is definitely in control, but I have never thought of myself as co-dependent!
One of the ways to save one's self is to be able to walk out and leave work there. I may bask for a while with the nice feeling that I did a good job but that doesn't last long. At home our life is give and take and my wife is definitely NOT "barefoot, pregnant, and in the kitchen".
Are you, or do you work with people, who are co-dependent?