Merck Manual

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Causes and Treatment of Low Blood Calcium Levels (Hypocalcemia)

Causes and Treatment of Low Blood Calcium Levels (Hypocalcemia)

Cause

Reason

Treatment

Hypoparathyroidism

Deficiency of parathyroid hormone leads to low blood calcium levels

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Chronic kidney failure

Damaged kidney does not effectively regulate calcium levels

Most cases are mild; if needed, lower blood phosphate concentration through diet and medication

Eclampsia (puerperal tetany)

Occurs in lactating females; may be due to imbalance between intake and outflow of calcium

Intravenous calcium; weaning of litter if possible

Chelating agents (for example, ethylene glycol in antifreeze)

Chelating agent binds to calcium

Depends on the chelating agent involved