Calcium count of 10.7, potassium count 6.0, WBC count 10.9, platelet count 800, ne count 7.2. What could be the cause? Stress?

Discuss with doctor. There are other results we don't know and your doctor, the one who ordered the tests does know. What is most concerning to ooh at is a potassium of 6.0. That has to be treated asap to avoid cardiac problem. Please have it treated now, like right now, if not being treated to lower it, then worry about the rest after. Your kidneys have to be evaluated too.