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.
Your refrigerator temperature setting should be 35Â°F for optimal performance. Anything below 32Â°F will cause your food to freeze, and anything above 40Â°F will allow harmful bacteria to grow. To ensure your temperature is set properly, consider purchasing a digital thermometer for your refrigerator. Monitor the temperature, and adjust the settings until the refrigerator holds at 35Â°F. If you find that your vegetables are freezing in the refrigerator, move them into the drawers (crisper).