Some Results of Parathyroidectomy of Calves

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Abstract
When only the internal parathyroids and the thyroid glands or the external parathyroids were removed, there was no tetany and little effect on the serum Ca and plasma inorganic P. Thyroparathyroidectomy resulted in an abrupt, marked lowering of the serum Ca, a less marked lowering of the inorganic plasma P, tetany, and death. An elevation of the inorganic plasma P occurred just prior to death.