What we test
Bone Health
These bone health markers are part of a complex feedback loop that play a critical role in maintaining bone health. When you don’t get enough calcium, you increase your risk of developing osteoporosis and stress fractures.
PTH helps maintain stable levels of calcium in the blood and is part of a ‘feedback loop’ that includes calcium, PTH, vitamin D, phosphate and magnesium. Conditions that disrupt this feedback loop can cause inappropriate increases or decreases in calcium and PTH levels.
Although called a vitamin, vitamin D (25-OHD) is actually a steroid hormone which is activated by sunshine on the skin. It is essential for bone strength as it helps the intestines absorb calcium.
Calcium is important in building strong bones and teeth, but it also plays a key role in other functions including muscle contraction, nerve function, blood clotting, and enzyme function.
Corrected calcium adjusts for changes in serum albumin levels, providing a more accurate measure of the biologically active form of calcium, and is therefore a better reflection of the body's calcium status.
Phosphate is a mineral which is essential for the formation of bones and teeth. It is also essential for many other cellular processes including energy metabolism and the formation of DNA and RNA.
Magnesium and calcium work together closely to maintain strong bones, and magnesium deficiency has been associated with an increased risk of osteoporosis.
Test instructions
Fast from all food and drink (other than water) for at least 8 hours, and no more than 12 hours prior to your blood test.
Download and print your pathology form from your i-screen dashboard.
Take your form to one of our affiliated collection centres to have your sample taken.
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