POCT in the ED â¢ Faster does not always lead to better outcome â¢ Lab tests are rarely the rate limiting factor in ED disposition â¢ Process analysis is the key understanding and improving patient throughput in the ED â¢ Test menu selection is a critical component of the potential application of POCT â¢ Match available tests to disposition decisions
Gravity decreases with altitude as one rises above the Earth's surface because greater altitude means greater distance from the Earth's centre. All other things being equal, an increase in altitude from sea level to 9,000 metres (30,000 ft) causes a weight decrease of about 0.29%.
Gravity holds us firmly on the ground and keeps the earth circling the sun. This invisible force 1 also draws down rain from the sky and causes the daily ocean tides. It keeps the earth in a spherical shape, and prevents our atmosphere from escaping into space. It would seem that this everyday gravity force should be one of the best understood concepts in science. However, just the opposite is true.