Biochemical analysis
Despite the challenging and ongoing discussions on how to measure the
level of vitamin D current guidelines recommend measurement of 25(OH)D
(1). The maternal and umbilical cord blood were sent directly to the
hospital’s central laboratory for analysis by an
electrochemiluminescence binding assay using Liaison 25-hydroxy-vitamin
D TOTAL. The laboratory is internationally certified by Analytics
Professional (CAP) and has accreditation from The International
Organization for Standardization (ISO). The cord blood gases and
electrolytes were analyzed directly on the labor ward bya stationary blood gas analyzer (ABL90, Radiometer, Copenhagen,
Denmark).