Question about above range serum calcium and T3

[Cat_bluenote]

Hi all, Has anyone else had a problem with serum calcium being above rangeI've just had blood test for serum adjusted calcium by GP. Serum calcium is high 279 (220 - 260). They want me to retest in 6 weeks.

A Google search mentions the possibility of dehydration affecting the results, but also that T3 can increase serum calcium.

Three weeks ago I increased T3 to 7.5mcg daily but GP doesn't know I take T3 . I take 75mcg Levo and my conversion has been low.

Can anyone reassure me that it probably isn't due to T3 - if my TSH is 2.70 (0.34 - 5.44) T3 not tested !

I was hoping to further increase T3, as TSH has risen, and I feel under medicated, but now I'm not sure if I should, in case it's affecting serum calcium?

Thanks

Edited to add

Results 18/9/24

TSH = 2.32 ( 0.34 - 5.44)

T4 = 13.4 (12 - 22) 14%,

T3 = 4.4 (3.1 - 6.8) 35.14%

On 75 mcg Levothyroxin and 5 mcg T3 daily

[Regenallotment Ambassador]

I’m not knowledgeable enough to answer your calcium question but your recent blood test results suggest you need to raise your T4 another 25mcg and test again, hold off any T3 changes until you have done that for 6-8 weeks and got the results, you may need 25mcg more after that.

Only thing that has come up on the forum related to calcium was discussions about parathyroids (tiny organs that sit behind the thyroid, you can be hyper and hypo with this) there are other members that have this and can give more info 😊

[Cat_bluenote in reply to Regenallotment]

Thanks. Yes, I think adding T4 might be safest thing to do. Might try just 25 mcg every other day. On a previous test in August my T4 was 75% through the range on my current dose, the prescriber thought it dropped because I took magnesium too close to Levo) I was wondering about parathyroids, I know they're involved in calcium control, but hopefully it's not that. 🤞I am a bit concerned about my bones ( with all my back pain) I asked GP about osteoporosis. I can't remember her exact words, but the meaning was - we wait for you to have a fracture! 😂 🤷 They really don't inspire confidence.