- Oxygen saturation
Oxygen saturation or dissolved oxygen (DO) is a relative measure of the amount of oxygen that is dissolved or carried in a given medium. It can be measured with a dissolved oxygen probe such as an oxygen sensor or an optode in liquid media, usually water.
Oxygen saturation in medicine
In medicine, oxygen saturation refers to oxygenation, or when oxygen molecules (O2) enter the tissues of the body. In this case blood is oxygenated in the lungs, where oxygen molecules travel from the air and into the blood. Oxygen saturation, or O2 sats measure the percentage of hemoglobin binding sites in the bloodstream occupied by oxygen. Fish, invertebrates, plants, and aerobic bacteria all require oxygen for respiration.blood is also vital to the body system.
Environmental oxygen saturation
Oxygen saturation in the environment generally refers to the amount of oxygen dissolved in the soil or bodies of water. Environmental oxygenation can be important to the sustainability of a particular ecosystem. Insufficient oxygen (environmental hypoxia) may occur in bodies of water such as ponds and rivers, tending to suppress the presence of aerobic organisms such as fish. Deoxygenation increases the relative population of anaerobic organisms such as plants and some bacteria, resulting in fish kills and other adverse events. The net effect is to alter the balance of nature by increasing the concentration of anaerobic over aerobic species.
Respiratory system, physiology: respiratory physiology Lung volumes Airways/
ventilation/perfusion ratio (V/Q)ventilation/perfusion scan · zones of the lung · gas exchange · pulmonary gas pressures · alveolar gas equation · alveolar-arterial gradient · hemoglobin · oxygen-haemoglobin dissociation curve (Oxygen saturation, 2,3-DPG, Bohr effect, Haldane effect) · carbonic anhydrase (chloride shift) · oxyhemoglobin · respiratory quotient · arterial blood gas · diffusion capacity (DLCO)
Control of respiration Insufficiency
Wikimedia Foundation. 2010.
Look at other dictionaries:
oxygen saturation — a measure of the degree to which oxygen is bound to hemoglobin, usually measured by a pulse oximeter, given as a percentage calculated by dividing the maximum oxygen capacity into the actual oxygen content and multiplying by 100 … Medical dictionary
Oxygen saturation test — An oxygen saturation test is a medical test that measures the amount of oxygen being carried by red blood cells. One method uses a device that shines light through a finger. The device measures the amount of oxygen in the blood based on the way… … Wikipedia
oxygen saturation capacity — deguonies koncentracijos rodiklis statusas T sritis ekologija ir aplinkotyra apibrėžtis Ištirpusio deguonies kiekis vandenyje arba nuotekose, kai deguonis patenka iš oro arba specialiais įrenginiais (nuotekų valymo sistemose). atitikmenys: angl.… … Ekologijos terminų aiškinamasis žodynas
oxygen saturation value — deguonies koncentracijos rodiklis statusas T sritis ekologija ir aplinkotyra apibrėžtis Ištirpusio deguonies kiekis vandenyje arba nuotekose, kai deguonis patenka iš oro arba specialiais įrenginiais (nuotekų valymo sistemose). atitikmenys: angl.… … Ekologijos terminų aiškinamasis žodynas
oxygen saturation test — A test that measures the amount of oxygen being carried by red blood cells. One method uses a device that shines light through a finger. The device measures the amount of oxygen in the blood based on the way red blood cells carrying oxygen absorb … English dictionary of cancer terms
Oxygen toxicity — Classification and external resources In 1942–43 the UK Government carried out extensive testing for oxygen toxicity in divers. The chamber is pressurised with air to 3.7 … Wikipedia
Saturation — or saturated generally means thoroughly full , while unsaturated means less than full. These terms may be related to: * Dew point, which is a temperature that occurs when atmospheric humidity reaches 100% and the air can hold no more moisture *… … Wikipedia
Oxygen therapy — Intervention ICD 9 CM 93.96 MeSH … Wikipedia
Oxygen–haemoglobin dissociation curve — The oxygen–haemoglobin dissociation curve (or oxygen–hemoglobin dissociation curve) plots the proportion of haemoglobin in its saturated form on the vertical axis against the prevailing oxygen tension on the horizontal axis. The oxyhaemoglobin… … Wikipedia
Oxygen-haemoglobin dissociation curve — The oxygen haemoglobin dissociation curve plots the proportion of hemoglobin in its saturated form on the vertical axis against the prevailing oxygen tension on the horizontal axis. The oxyhemoglobin dissociation curve is an important tool for… … Wikipedia