While the measured quantities are the same across border, both names and units can vary.

The main difference is often the unit used for the concentration of each analyte : either mass per volume or mole per volume (eg: glucose 1g/L = 5.5 mmol/L), sometime variation on the unit prefix (eg: haemoglobin 120 g/L = 12 g/dL). It is of course possible to convert a value in another representation.

This is mostly a result of differing medical traditions/habits.

While the measured quantities are the same across border, both names and units can vary.

The main difference is often the unit used for the concentration of each analyte : either mass per volume or mole per volume (eg: glucose 1g/L = 5.5 mmol/L), sometime variation on the unit prefix (eg: haemoglobin 120 g/L = 12 g/dL). It is of course possible to convert a value in another representation: here is a list of normal values (PDF) in different units.

This is mostly a result of differing medical traditions/habits (AMA style guide regarding units, wikipedia on units and reference ranges)