CBS.com; CBS All Access; CBS News; CBSN; Watching Live TV. All Access Live TV; TV Provider
Thick blood may also be caused by the presence of harmful pathogens such as fungi, viruses, bacteria, and parasites. These pathogens can actually activate a coagulation response in the body as a way to avoid being attacked by the bodyâs immune system.
Blood viscosity. The thicker (or more âviscousâ) blood is, the harder the heart has to work to pump it around the body and consequently more pressure is created within the vessels. Blood can thicken for many reasons but the main ones are a lack of water and or a high glucose (blood sugar) concentration.ardiac output (known as âQâ) is a measure of the amount of blood that is pumped out of the heart in one minute. âQâ specifically refers to the amount of blood pumped out of the left ventricle as this is the ventricle that supplies blood to the muscles and organs of the body.