Well, it&#x27;s a good point but how do you decide what&#x27;s critical?<p>To answer my own question; I believe the future lies in machine learning algorithms processing symptoms and tests (I guess a symptom is also a test in the sense that it&#x27;s the answer to a question).<p>Most of the times there&#x27;s also not a simple answer to be found . The right answer depends on many factors including the capabilities of your hospital&#x2F;country&#x2F;economy and the state of science.