laboratory diagnostic - others - Deoxypyridinoline, urines - bone resorption marker, morning urine 5ml, refrigerated. CIRCADIAN RHYTHM: This biological parameter has a circadian rhythm (maximum concentration in the morning), with a sufficiently significant amplitude to have a significant influence on the clinical interpretation. In the case of repeat prescriptions, the colleciton time should always be the same, Enzyme-immunoassay, ssso, todylaboratories®, bmn, code L16LD1613