My recent strontium serum lab results certainly needs some of this site's strontium experts to weigh in with their assessment. For a quick definition of terms, I was surprised to find out that strontium serum/plasma (strontium in the blood) can be measured with a simple blood draw - urine can also be used as a measure. Such a blood draw does not tell what is in your bones but what it does indicate is startling:
Range: 10.0 - 45.0 ng/ml
My result: 1916.3 ng/ml High
(My comment - that is a whopping 4,258 % higher than the upper limit of normal of 45.0 ng/ml)
NOTE: Result verified by repeat analysis.
Strontium analysis performed by inductively coupled plasma / mass spectrometry (ICP/MS).
My endo ordered the test with my last lab draw in March through Lab Corp which is a large laboratory corporation here in the U.S. that also tests for heavy metals, among them strontium. My endo knows I take strontium but wishes I did not and this last lab result has him even more concerned as to renal failure or osteomalcia.
As for me, I started strontium citrate last Oct 2012 but had a reaction and had to switch to strontium carbonate which is very hard to find. I also added the supplements others have used with success on this site. And I also use Calcitonin-Salmon nasal spray. So that is my osteoporosis recipe - for disaster?
I would guess the rest of you taking strontium would have similar strontium serum results......and nothing in Lara Pizzorno's book Save Out Bones addresses this issue of the meaning of measurable high strontium serum, urine, or plasma. So what do I, do WE, do now? I realize that we are a small "n" who take daily strontium supplements so there is no range established for those of us ingesting strontium on a daily basis. However, at the same time there actually is something called strontium toxicity that can be found on PubMed.
Do those taking Strontium Renalate have this same high strontium serum? It is one thing to have strontium in the bones but this is a measure of the strontium circulating in my blood. I am open to any discussion or explanation or input but I am feeling very uncomfortable.