Hypoxemia true SNOMEDCT_US:389087006 UMLS:C0700292 An abnormally low level of blood oxygen. HP:0012418 human_phenotype Hypoxia https://www.ncbi.nlm.nih.gov/pubmed/22791548 MSH:D000860 peter Note that hypoxemia is defined as a condition where arterial oxygen tension is below normal (80-100mmHg). Hypoxia is defined as the failure of oxygenation at the tissue level. Hypoxia is not measured directly by a standard laboratory value. Low blood oxygen level 2013-11-10T05:07:07Z Abnormal blood oxygen level