Oximeter Health Dictionary

The measurement by an OXIMETER of the proportion of oxygenated HAEMOGLOBIN in the blood.... oximetry

A test for determining the acidity–alkalinity (pH) and the concentrations of oxygen, carbon dioxide, and bicarbonate in the blood. The test is carried out on a sample of blood taken from an artery, usually at the wrist or groin. It is useful in diagnosing and monitoring respiratory failure. Bicarbonate and acidity reflect the acid–base balance of the body, which may be disturbed in

conditions such as diabetic ketoacidosis, aspirin poisoning, hyperventilation, or repeated vomiting.

Blood oxygen can also be measured without taking a blood sample by using an oximeter.... blood gases

An inadequate supply of oxygen to the tissues. Temporary hypoxia may result from strenuous exercise. More serious causes include impaired breathing (see respiratory failure), ischaemia, and severe anaemia. A rare cause is carbon monoxide poisoning. Severe, prolonged hypoxia may lead to tissue death.

Hypoxia in muscles forces the muscle cells to produce energy anaerobically, which can lead to cramps. Hypoxia in heart muscle may cause angina pectoris. Hypoxia of the brain causes confusion, dizziness, and incoordination, causing unconsciousness and death if persistent. Hypoxia can be assessed by using an oximeter to measure the oxygen concentration of blood in the tissues. Severe hypoxia may require oxygen therapy or artificial ventilation.... hypoxia