Red blood cell oxygen has been released the resulting deoxyhemoglobin is of a dark red burgundy color. However, blood can appear bluish when seen through the vessel wall and skin. Pulse oximetry takes advantage of the hemoglobin color change to directly measure the arterial blood oxygen saturation using colorimetric techniques. Hemoglobin also has a very high affinity for carbon monoxide, forming carboxyhemoglobin which is a very bright red in color. Flushed, confused patients with a saturation reading of 100% on pulse oximetry are sometimes found to be suffering from carbon monoxide poisoning. Having oxygen-carrying proteins inside specialized cells (as opposed to oxygen carriers
Blood Car Blood Car Blood Car is a 2007 black comedy film set in the not-too-distant future where gasoline prices have become exorbitant ($30+ US/gallon). Things take a turn for the worse when a kindergarten teacher (Mike Brune) invents a car that runs on a different fuel source: blood. Archie Andrews is a vegan kindergarten teacher who buys products from Lorraine's vegetarian road side stand. He is developing an engine that runs on wheatgrass with no results until he accidentally cuts his finger and the blood falls in the wheatgrass, which filters to the engine and then causes it to run. Andrews