My vitamin D was previously low at 19 with elevated PTH 73. Endo had me take Vit D and both levels improved: PTH decreased to 70 with Vit D 45.
Since then Endo has been testing just Vit D about every 6 wks: had me reduce Vit D to 1K IU, levels dropped to 32, then increase to 2K IU levels incr. to 45. Now he's telling me to reduce back to 1K IU and retest in 6 wks.
What is the intent of this Vit. D testing, and why would I cut back my Vit D to 1KIU when my levels previously dropped on this amount? Would this be telling him something about the Parathyroid? He's very busy and I'm concerned the prescribed dose does not seen appropriate.