Minimally invasive arthroscopic procedure to remove articular cartilage in the knee. Articular cartilage is a firm rubbery tissue that covers the ends of bones. It provides a smooth gliding surface for joints and acts as a cushion between bones. Cartilage can break down due to overuse or injury.
While normal atmosphere contains between 20.8 and 21 percent oxygen, OSHA defines as oxygen deficient any atmosphere that contains less than 19.5 percent oxygen, and as oxygen enriched, any atmosphere that contains more than 22 percent.
Hypoxemia is defined as insufficient oxygenation of the blood. Pulse oximetry is a simple, transcutaneous non-invasive method of measuring and monitoring the percentage of hemoglobin (Hb) which is saturated with oxygen, that is, the amount of oxygen dissolved in the arterial blood. The pulse.