The effects of acute vitamin D toxicity are characteristic of hypercalcemia. Symptoms may include:
Chronic vitamin D toxicity symptoms may also include constipation and backache. Other findings may also include calcinosis, followed by hypertension and cardiac arrhythmias (due to a shortened refractory period).
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Cite this: Romesh Khardori. Fast Five Quiz: Vitamin D - Medscape - Jul 21, 2020.