Diagnosis: Christianity

Tomorrow's World: When doctors measure a patient's state of health, they go through a series of measurements and tests to come up with a diagnosis. What is this patient's temperature and blood pressure? Is the patient healthy or horribly ill? But what if we were to diagnose modern "Christianity"? Would we find a healthy and vibrant specimen of the Church, as Jesus Christ intended it to be? Or would we find a very sick "patient" on our hands?