In the hospital, the relative density of blood, the so-called relative density of blood, is the ratio of the weight of the same volume of water to the quality of blood 1. The normal values are male 1.052- 1.060 and female 1.049- 1.056.
Extended data:
Blood consists of plasma and blood cells. One liter of plasma contains 900-9 10g of water, 65-85g of protein and 20g of low molecular weight substances. Low molecular weight substances contain many electrolytes and organic compounds. Blood cells include red blood cells, white blood cells and platelets.
Adult blood accounts for about one thirteenth of body weight, with a relative density of 1.050 ~ 1.060, a pH value of 7.3 ~ 7.4, and an osmotic pressure of 3 13mm per liter. It consists of plasma and blood cells.
Plasma contains plasma proteins (albumin, globulin, fibrinogen), lipoproteins and other nutrients, as well as inorganic salts, oxygen, hormones, enzymes, antibodies and cell metabolites. Blood cells include red blood cells, white blood cells and platelets. Physiological and pathological changes of the body often cause changes in blood components, so the detection of blood components has important clinical significance.
References:
Baidu Encyclopedia: Blood