Hyperoxemia

What it means

An abnormally high level of blood oxygen.

Note that hyperoxemia is defined as a condition where arterial oxygen tension is above normal (80-100mmHg). Hyperoxia is defined as increased oxygen tension at the tissue level. Hyperoxia is not measured directly by a standard laboratory value.

Rare diseases that can present with this1

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category