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 maintain a consistent temperature between 33Â° and 41Â°. Above this temperature, foods start to spoil and harmful illness-inducing bacterias can grow very quickly. Below this, of course, and food will start to freeze, which is also not ideal.