The weird twist to this is that my PCP deferred to the endocrinologist's determination and she had not checked them again until just this February. I think she was surprised that they weren't in the normal range. She had checked my calcium, potassium, etc. on a yearly basis as part of normal checkups (basic metabolic panel) and since they were normal she didn't do the extra PTH test. I guess a lot of doctors would make the assumption that if the calcium level is normal, no need for the extra PTH test.