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.
The ideal temperature for a refrigerator is between 34 and 40 degrees Fahrenheit, and the ideal temperature for a freezer is at least 0 degrees Fahrenheit. Although this temperature keeps food safe in a freezer, food quality sometimes benefits when the freezer is lowered to -10 or -20 degrees Fahrenheit.