Ad
related to: oxygen saturation results explained in detail page 8 of 2 of 5
Search results
Results From The WOW.Com Content Network
At 1,600 meters' altitude (about one mile high) oxygen saturation should be above 92%. [11] An SaO 2 (arterial oxygen saturation) value below 90% causes hypoxia (which can also be caused by anemia). Hypoxia due to low SaO 2 is indicated by cyanosis, but oxygen saturation does not directly reflect tissue oxygenation. The affinity of hemoglobin ...
In medicine, oxygen saturation refers to oxygenation, or when oxygen molecules (O 2) enter the tissues of the body. In this case blood is oxygenated in the lungs, where oxygen molecules travel from the air into the blood. Oxygen saturation ((O 2) sats) measures the percentage of hemoglobin binding sites in the bloodstream occupied by oxygen ...
A low PaO 2 indicates abnormal oxygenation of blood and a person is known as having hypoxemia. (Note that a low PaO 2 is not required for the person to have hypoxia as in cases of Ischemia, a lack of oxygen in tissues or organs as opposed to arterial blood.) At a P a O 2 of less than 60 mm Hg, supplemental oxygen should be administered.
A pulse oximeter probe applied to a person's finger. A pulse oximeter is a medical device that indirectly monitors the oxygen saturation of a patient's blood (as opposed to measuring oxygen saturation directly through a blood sample) and changes in blood volume in the skin, producing a photoplethysmogram that may be further processed into other measurements. [4]
Samples from the earlobe are seen to be a more appropriate site for the prediction of the arterial partial pressure of oxygen. [3] Blood gas tests also measure the levels of bicarbonate and standard bicarbonate, base excess, oxygen saturation, and pH. Typically, an arterial blood gas test is used more often than venous blood gas tests. [4]
The oxygen–hemoglobin dissociation curve, also called the oxyhemoglobin dissociation curve or oxygen dissociation curve (ODC), is a curve that plots the proportion of hemoglobin in its saturated (oxygen-laden) form on the vertical axis against the prevailing oxygen tension on the horizontal axis. This curve is an important tool for ...
Hypoxemia is usually defined in terms of reduced partial pressure of oxygen (mm Hg) in arterial blood, but also in terms of reduced content of oxygen (ml oxygen per dl blood) or percentage saturation of hemoglobin (the oxygen-binding protein within red blood cells) with oxygen, which is either found singly or in combination. [2] [5]
[1]:141 [2]:141 [3] If the cause of the cyanosis is poor oxygen saturation by the lungs, allowing the patient to breathe 100% oxygen will augment the lungs' ability to saturate the blood with oxygen, and the partial pressure of oxygen in the arterial blood will rise (usually above 150 mmHg [ 3 ] ).