You must be at least 17 years old to donate to the general blood supply, or 16 years old with parental/guardian consent, if allowed by state law. Learn more about the reasons for a lower age limit.
Other Causes of Elevated Heart Rate. Elevated heart rate when sick is actually your heartâs aid in order to quell the sickness. However, there can be other causes for elevated heart rate as well. Electrical signals produced and sent to the heart tissues are responsible for controlling the heart rate.
Managing your blood glucose (sugar) when youâre ill. When you are sick, your blood glucose (sugar) levels may fluctuate and be unpredictable. During these times, it is a good idea to check your blood glucose (sugar) levels more often than usual (for example, every two to four hours). It is also very important that you continue to take your diabetes medication.