Open Access Articles- Top Results for Blood volume

Blood volume

Blood volume is the volume of blood (both red blood cells and plasma) in the circulatory system of any individual.


A typical adult has a blood volume of approximately 5 liters, with females generally having less blood volume than males.[1] Blood volume is regulated by the kidneys.

Blood volume (BV) can be calculated given the hematocrit (HC; the fraction of blood that is red blood cells) and plasma volume (PV):

<math>BV = \frac{PV}{1-HC}</math>

Blood volume measurement is indicated for the diagnosis and treatment patients suffering from congestive heart failure, chronic hypertension, renal failure and critical care.

Other animals

Animal Blood volume
Cat 55 (47-66)
Cow 55 (52-57)[3]
Dog 86 (79-90)
Ferret 75
Gerbil 67
Goat 70
Guinea pig 75 (67-92)
Hamster 78
Horse 76
Human 77
Monkey (rhesus) 54
Mouse 79 (78-80)
Pig 65
Rabbit 56 (44-70)
Rat 64 (50-70)
Sheep 60
Marmoset 60-70[4]

The table at right shows circulating blood volumes, given as volume per kilogram, for healthy adults and some animals.[2] However, it can be 15% less in obese and old animals.[2]

See also


  1. Lee, Lan Na (1998). "Volume of Blood in a Human". The Physics Factbook. 
  2. 2.0 2.1 2.2 A Compendium of Drugs Used for Laboratory Animal Anesthesia, Analgesia, Tranquilization and Restraint at Drexel University College of Medicine. Retrieved April 2011
  3. Reynolds, Monica ; Plasma and Blood Volume in the Cow Using the T-1824 Hematocrit Method American Journal of Physiology - June 1953 vol. 173 no. 3 421-427
  4. Wolfensohn & Lloyd, 2003, Handbook of Laboratory Animal Management and Welfare, 3rd Edition

External links

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