From Big Medical Encyclopedia

ACIDEMIA (acidaemia; lat. acidus acid + grech, haima blood) — presence at blood of organic and inorganic acids at not dissociated form and in the form of anions.

In physiological conditions in plasma and whole blood in not dissociated state only weak acids — milk, coal, Pyroracemic, acetoacetic, beta and hydroxy-butyric, and also amino acids are found. At pH of blood 7,35 — 7,40 concentration of not dissociated acids is much lower than the content of their salts with cations of sodium, potassium, calcium, magnesium. According to J. N. Brönsted's theory anions of weak acids represent acceptors of hydrogen ions and therefore belong to the category of the bases. Strong acids (phosphoric, salt, sulfuric) circulate in blood only in the form of anions.

At And. in blood acids which normal do not come to light or contain in trace quantities (e.g., isovalerianic to - that) are defined. It is accepted to call strengthening of the acids which are normal compound components of blood a hyper acidemia, and strengthening of hydrogen ions is designated as acidosis (see).

Yu. E. Veltishchev.