Bruising or discoloration, Cold feet, Cold hands and Fatigue. WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms bruising or discoloration, cold feet, cold hands and fatigue including Bruise or contusion, Raynaud phenomenon, and Hematoma.
The approximate blood volume of a rat is 55-70 ml/kg of body weight. For a 300 g rat this is equivalent to 17-21 ml (5). Single sample: Without fluid replacement, the maximum blood volume which can be safely removed for a one time sample is 10% of the total blood volume or 5.5-7 ml/kg.
Since the left ventricle has to pump blood to the rest of the body, its walls are relatively thick, while the walls of the atria are relatively thin. The volume of blood in human body is nearly 5 liters. The heart pumps about 280 liters in one hour, 7200 liters in 24 hours, or 2,688,000 liters per year!