Medical Coding for Stress can be Physical or Chemical. So a stress test can be performed in several different ways. The key is to get the heart pumping and accelerate the heart and then graph it to see what its doing. So to create stress on the heart orâ¦ in the heart, theyâll use a treadmill, or exercise bike. Thereâs more than one type of treadmill thatâs listed on the CPT code 93015, just in case when youâre reading the case and thereâs a specific type of treadmill. Another way that they can do this is by medication.
The causes of climate change can be divided into two categories-those that are due to natural causes and those that are created by man. Natural causes There are a number of natural factors responsible for climate change. Some of the more prominent ones are continental drift, volcanoes, ocean currents, the earth's tilt, and comets and meteorites. Let's look at them in a little detail.
Many greenhouse gases occur naturally in the atmosphere, such as carbon dioxide, methane, water vapor, and nitrous oxide, while others are synthetic.Those that are man-made include the chlorofluorocarbons (CFCs) , hydrofluorocarbons (HFCs) and Perfluorocarbons (PFCs), as well as sulfur hexafluoride (SF 6).s a greenhouse gas, the higher concentration of water vapor is then able to absorb more thermal IR energy radiated from the Earth, thus further warming the atmosphere. The warmer atmosphere can then hold more water vapor and so on and so on. This is referred to as a 'positive feedback loop'.