I was trained to think wholistically about the person, meaning I pay attention to emotional, social, familial, spiritual, and physical health. Work is an important part of where we put our energy. Work can be a deeply meaningful part of our lives, or it can be unhealthy and a source of alienation and suffering. So, looking at our work can be an important element in counseling.
Even though I was trained to provide career counseling, I don't often do it exclusively. But I regularly invite my clients to look at their relationship to work and to assess their happiness with what they are doing. Sometimes that shifts into doing more traditional career counseling, where my clients undertake a search to decide how they want to define or change their careers.
At that point I often have those clients do some formal career testing such as the Strong Interest Inventory.