Since blood production requires iron, you should eat iron-rich foods for two weeks before your appointment. This will help you have strong blood for donation and help you better recuperate after your donation. Iron-rich foods include spinach, whole grains, fish, poultry, beans, organ meat, eggs, and beef.
To calculate the change in temperature, subtract the initial temperature from the final temperature. Example: 84.2 degree Fahrenheit - 41 degrees Fahrenheit = 43.2 degrees Fahrenheit. The temperature from morning to afternoon changed by 43.2 degrees Fahrenheit.
The core temperature is measured with a thermometer, with readings taken with the transformer cold and hot.. With these two readings, the temperature rise is calculated. For example, if we have a reading of 25 [degrees] C cold and 75 [degrees] C hot, then the temperature rise is 50 [degrees] C.