bicarbonate (redirected from Hydrogencarbonate)

bicarbonate /bi·car·bo·nate/ (-kahr´bah-nāt) any salt containing the HCO3− anion.

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blood bicarbonate , plasma bicarbonate the bicarbonate of the blood plasma, an index of alkali reserve.

bicarbonate of soda  sodium bicarbonate.

standard bicarbonate  the plasma bicarbonate concentration in blood equilibrated with a specific gas mixture under specific conditions.

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bi·car·bon·ate (b-kärb-nt, -nt)

n.

The radical group HCO₃ or a compound, such as sodium bicarbonate, containing it.

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bicarbonate (HCO₃^-)

[bīkär′bənāt]

Etymology: L, bis, twice, carbo, coal

an anion of carbonic acid in which only one of the hydrogen atoms has been removed, as in sodium bicarbonate (NaHCO₃). Also called hydrogen carbonate.

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bicarbonate,

n a salt resulting from the incomplete neutralization of carbonic acid such as from passing excess carbon dioxide into a base solution.

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bicarbonate

any salt containing the HCO₃⁻ anion.

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blood bicarbonate

the bicarbonate of the blood plasma, an important parameter of acid-base balance measured in blood gas analysis. Called also plasma bicarbonate.

bicarbonate buffering

major body buffering system in acid-base balance.

plasma bicarbonate

see blood bicarbonate (above).

bicarbonate of soda

sodium bicarbonate.

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bicarbonate

HCO₃ Nephrology A general term for any salt containing the anion HCO₃–, which is the most important buffer in the blood; bicarbonate is regulated by the kidney, which excretes it in excess and retains it when needed; it is ↑ in ingestion of excess antiacids, diuretics, steroids; it is ↓ in diarrhea, liver disease, renal disease, chemical poisoning. See Blood gases.