Normal serum calcium is between 8.6 and 10.3. Some labs have slightly different ranges. High end of normal can also be a red flag. I ran 12 serum calcium tests on one patient and 5 were in the 10s and the others 9.6-9.9.
Following are some of the many symptoms associated with Primary Hyperparathyroidism:
One test will not tell the full story. Also, the lab must handle the test correctly and it should be obtained first thing in the morning after fasting for 12 hours.
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