Blood gas partial pressure mapping for mmHg and kPa

It was found that LOINC does not have suggested unit kPa for blood gas related tests. Should it be mapped with those LOINC code with suggesting unit= mmHg?



Hello! You are correct, both the SI derived unit of measure for pressure, the Pascal unit and the routinely used (but not SI based) millimeter of mercury (mmHg) measure a gas from a pressure stand point.

The property attribute you would be seeking for each gaseous analyte is PPRES

Thank you for asking,

Pam Banning

Thanks pdbanning~ Hope that LOINC can include SI and non-SI unit as example unit in the future.

Any guidline for LOINC code mapping to partial pressure reporting with Pascal unit?