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.
To calculate the average, the set of numbers need to be added to find the total. The total is then divided by how many numbers were added up. In Table 1, the total temperature over the five days equalled 135 o C. The average can be calculated by dividing 135 by 5 (the number of days temperatures were recorded).n Table 1, the total of the five daily temperatures can be found by adding up 21 + 26 + 25 + 33 + 30 = 135. This means that the total temperature is equal to 135 o c. If required to find the total temperature of the odd days (Day 1, 3 and 5), then it would equal 76 o c, since 21 + 25 + 30 = 76. See image 2.