Right after have my first (and only) zoledronic acid infusion, I started doing my own research. I was trying to find out how I could sort of force my body to absorb more calcium. What ever I entered into the search bar lead me to info on the parathyroid glands and eventually I found Dr. Brown's BetterBones.com and found her list of tests you should have for secondary causes of osteoporosis. One of the tests listed was a PTH test. During my next endocrinologist visit I asked my endocrinologist appt I asked him about having it tested and he always starts with a stupid scare-tactic of "your insurance may not cover this" and then he had his lab person draw blood for a PTH test. I had had my zoledronic acid infusion, which he ordered, approximately 6 weeks prior. So yes, he checked my PTH but what I learned later is that bisphosphonates can skew PTH results and that you are supposed to do if fasting and first thing in the morning. So the test showed that my PTH was in the normal range but the test wasn't performed correctly. Now that it's been over a year since I had the infusion, I could request to have my parathyroid glands tested again. I have an appt with an telemedicine doctor next week to try to get help understanding my bone turnover marker tests and during that appt I will see what the she thinks I should do.