1 Dizziness, lightheadedness, or fainting. 2  A pulse oximeter is a device that measures the amount of oxygen in your blood.  Blood tests may be done to measure blood gases, such as oxygen, acids, and carbon dioxide. Blood tests may also be used to find the cause of your hypoxia.
Iridium(noun) a rare metallic element, of the same group as platinum, which it much resembles, being silver-white, but harder, and brittle, and indifferent to most corrosive agents. With the exception of osmium, it is the heaviest substance known, its specific gravity being 22.4. Symbol Ir. Atomic weight 192.5.
a chemical element, atomic number 77, atomic weight 192.2. iÂ·ridÂ·iÂ·um (Ir), A white, silvery metallic element, atomic no. 77, atomic wt. 192.22; 192Ir is a radioisotope (half-life of 73.83 days) that has been used in the interstitial treatment of certain tumors. iridium. /iridÂ·iÂ·um/ (Ir) (Ä­-ridÂ´e-um) chemical element, at. no. 77. iridium Ir 192 an artificial radioactive isotope with a half-life of 75 days, used in radiotherapy.