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Thyroid Cancer, Nodules & Hyperthyroidism (Expert Forum)
Normal Parathyroid activity but Calcium continues to go down...
Answered by
Mark Lupo, M.D. - Thyroid Nodules, Thyroid Cancer, hyperthyroidism, hypothyroidism, Thyroid Ultrasound
Thyroid & Endocrine Center of Florida
Sarasota - FL
Questions in the Thyroid forum are answered by Mark Lupo, MD. Topics covered include Goiter, Graves Disease, Hyperthyroid, Parathyroid/Calcium Problems, Thyroid Cancer, Thyroid Nodules/Cysts, Thyroiditis, Thyroid & Pregnancy, Thyroid Stimulating Hormone (TSH), Thyroid Tests, and Thyroid Surgery.
Normal Parathyroid activity but Calcium continues to go down...
by DMLee, Apr 12, 2007 12:00AM
TT on October 2006. Went into Tetany while in the hospital on day 2 when the Calcium dropped to 6.3. One parathyroid was removed, one reattached, and two were not touched.
Have been on as much as 1.0 of Rocaltriol, 50,000 units of Vitamin D, 4800 Calcium, and twice the normal dose of Magnesium. Have tried all types of Calcium and now on the Viactive chews and Citracal. Have tried backing off some of the above and the Calcium drops to 7 on the last reading.
But my parathyroid reading is 38 which is right in the normal limits. So my question is why am I still having Calcium issues. Why would it be an absorption problem if the parathyroid activity is normal?
Thanks for any thoughts...
Have been on as much as 1.0 of Rocaltriol, 50,000 units of Vitamin D, 4800 Calcium, and twice the normal dose of Magnesium. Have tried all types of Calcium and now on the Viactive chews and Citracal. Have tried backing off some of the above and the Calcium drops to 7 on the last reading.
But my parathyroid reading is 38 which is right in the normal limits. So my question is why am I still having Calcium issues. Why would it be an absorption problem if the parathyroid activity is normal?
Thanks for any thoughts...
Doctor's Answer
by Mark Lupo, M.D., Apr 14, 2007 12:00AM
, Apr 14, 2007 12:00AM
If you are not having any symptoms (ie, cramping, tetany), then one may question the lab accuracy -- could check ionized calcium to see if there is any binding protein issue making the Ca level look low. I agree that a PTH of 38 would suggest recovery of the PT gland, but actually in the face of low Ca, a completely normal PTH response would be above the normal range. These are not always easy situations and require often lots of Ca/Vit D dosing variations to find the right balance.
Member Comments (1)
by em2jubs, Jun 21, 2008 05:27PM
A related discussion, NEED TO KNOW THE RIGHT AMOUNT OF VITAMIND D & CALCIUM was started.
