Slate is a metamorphic rock. Metamorphic rocks are formed when sedimentary or igneous rocks are exposed to conditions of very high pressure or temperature, or are exposed to large amounts of very hot water.Slate is formed when fine-grained sedimentary rock (shale) is buried and exposed to high pressure deep beneath the Earth's surface.gneous rocks are formed from melted rock that has cooled and solidified. When rocks are buried deep within the Earth, they melt because of the high pressure and temperature; the molten rock (called magma) can then flow upward or even be erupted from a volcano onto the Earth's surface.
As a patient with COPD, your health care provider may determine your oxygen levels at rest, while sleeping, or during exercise to see if oxygen may help you. If your oxygen levels are low, oxygen therapy will help reduce the strain on your heart, brain, and muscles, and using oxygen as directed may help you feel better.
A person with COPD may have an increased pH and partial pressure of carbon dioxide because not enough carbon dioxide is being exchanged in the lungs. People with COPD may also display low levels of dissolved oxygen and oxygen saturation.xygen is an arterial blood gas and is required by all cells of the body for metabolism. Oxygen is breathed in through the lungs, where it dissolves into blood. Once in the blood, oxygen is bound to the protein, hemoglobin inside red blood cells.