Introduction: Preeclampsia is one of the most important complications of pregnancy which increases maternal morbidity and mortality. Calcium homeostasis disorders may have some roles in vascular hypersensitivity in preeclampsia. Therefore. the purpose of this study was to compare calcium of serum and 24-hour urine between preelamptic and normotensive pregnant patients. https://shopredoners.shop/product-category/trouser-jeans/