complaints that were confusing

I remember one case where a patient had complaints that were confusing to the doctor and he (the patient) was sent to the lab. We performed liver function tests and renal fuction tests. The results revealed the the renal function tests were out of range and so the doctor had a clearer picture of what was going on with the patient. So what do I learn from this? Well, i could say that, my proffesion saved the day. Both for the troubled patient and the confused doctor!