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.
These natural causes are still in play today, but their influence is too small or they occur too slowly to explain the rapid warming seen in recent decades. We know this because scientists closely monitor the natural and human activities that influence climate with a fleet of satellites and surface instruments.Remote meteorological stations (left) and orbiting satellites (right) help scientists monitor the causes and effects of global warming.n Earthâs history before the Industrial Revolution, Earthâs climate changed due to natural causes not related to human activity. Most often, global climate has changed because of variations in sunlight. Tiny wobbles in Earthâs orbit altered when and where sunlight falls on Earthâs surface.