Could non-fasting, lunch of burger/coke about 5-6 hours before, cause high pto, 1.95? calcium was 2.18. i'd like to avoid further expensive testing.

See your doc: I t is not clear as to what test you are asking about , but if I may guess you are talking about a protime The PTO is actually read as a INR. The INR does not become elevated with a burger and coke. You need to seek professional help in this regard. Make sure you are not taking too much in the way of alcohol.. Best wishes

NO: but I would not recommend eating Burgers or Coke too often.