The range rule tells us that the standard deviation of a sample is approximately equal to one fourth of the range of the data. In other words s = (Maximum â Minimum)/4. This is a very straightforward formula to use, and should only be used as a very rough estimate of the standard deviation.
4) Durable medical equipment: Wheel chair, commodes and raised toilet sheet, walker and power operated vehicles which improves the quality of living of the patients are known as durable medical equipment. It also includes iron lungs, oxygen tents, nebulizers, catheters and hospital beds.
What is Durable Medical Equipment? Durable medical equipment (DME) and disposable medical supplies are a Colorado Medicaid benefit that provides clients with medical equipment and/or disposable supplies when there is a medical need for the treatment or therapy of an illness or physical condition. DME must serve a medical purpose and be able to withstand repeated use. Some examples of equipment that are considered DME include: oxygen, wheelchairs, walkers and bathroom/bedroom safety equipment. Supplies must also serve a medical purpose, but they are not intended for repeated use. Supply items are items used in active treatment or therapy that are disposable or can be consumed.