Vitamin D

Total body vitamin D status assessment relies on 25-hydroxyvitamin D measurement, making vitamin D a critical fat-soluble secosteroid hormone biomarker in clinical practice. Laboratory testing applications include evaluation of vitamin D deficiency and insufficiency, monitoring supplementation therapy, assessment of metabolic bone diseases including osteoporosis, osteomalacia, and rickets, evaluation of malabsorptive conditions, and monitoring patients with chronic kidney disease or those presenting with hypocalcemia or hypercalcemia. UTAK’s Vitamin D Plus panels contain vitamin D in lyophilized serum matrix at multiple concentration levels including low, mid, and high ranges, supporting immunoassay and mass spectrometry methods for assay performance monitoring. Stock and custom QC solutions can incorporate both 25(OH)D2 and 25(OH)D3 forms, along with related fat-soluble vitamins such as vitamin A and vitamin E, and other endocrinology markers to address your laboratory’s comprehensive nutritional and metabolic testing requirements.