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- Paul Glendenning.
- Department of Clinical Biochemistry, Royal Perth Hospital, School of Medicine and Pharmacology, University of Western Australia.
- Aust Prescr. 2015 Feb 1; 38 (1): 12-5.
AbstractWhen assessing vitamin D status, measure serum 25-hydroxyvitamin D concentration as this reflects total body vitamin D reserves. Recent Australasian guidelines outline who should be tested for vitamin D deficiency, who should be treated and when repeat testing should be performed. A 25-hydroxyvitamin D threshold of at least 50 nanomol/L at the end of winter is a suitable treatment target. Measurement can be repeated after three months of repletion, and thereafter less frequently unless new risk factors for vitamin D deficiency arise. When interpreting vitamin D pathology reports, practitioners should be aware that some laboratories quote reference limits which are based on overseas rather than Australian guidelines.
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