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 optimal temperature range for the refrigerator is 34 to 40 degrees Fahrenheit to keep food safe and unfrozen. If your thermometer reading is outside of this range after the temperature test, adjust the temperature settings.ou may never think about the temperature when your refrigerator and freezer are operating properly, but the settings chosen for each compartment have a major impact on food safety.