Medical technicians include: 1  Cardiovascular technicians, whose duties involve performing echocardiograms, or sonograms of the hearts of patients. 2  Dialysis technicians who are trained to operate dialysis equipment for people with failing kidneys.
1 Maintain your refrigerator between 34Â°F and 40Â°F. Refrigerator thermometers are available to help monitor the temperature inside the appliance. See more on thermometers.  Use food quickly, and don't expect food to remain high-quality for the maximum length of time.
Refrigerators should operate between 36 and 45 degrees Fahrenheit. The optimum temperature your refrigerator should be set at is 40 degrees Fahrenheit. Refrigerators set at lower temperatures risk freezing some items, especially those closer to fan.