Search results
Results From The WOW.Com Content Network
Hypercalcemia occurs most commonly in breast cancer, lymphoma, prostate cancer, thyroid cancer, lung cancer, myeloma, and colon cancer. [2] It may be caused by secretion of parathyroid hormone-related peptide by the tumor (which has the same action as parathyroid hormone), or may be a result of direct invasion of the bone, causing calcium ...
Hypercalcemia of malignancy may also occur due to tumor production of vitamin D or parathyroid hormone. These causes are rare and constitute about 1% of all causes of hypercalcemia of malignancy. [22] Hypercalcemia of malignancy usually portends a poor prognosis, and the medial survival is 25–52 days of its development. [22]
Familial hypocalciuric hypercalcemia (FHH) is an inherited condition that can cause hypercalcemia, a serum calcium level typically above 10.2 mg/dL; although uncommon. [1] It is also known as familial benign hypocalciuric hypercalcemia (FBHH) where there is usually a family history of hypercalcemia which is mild, a urine calcium to creatinine ratio <0.01, and urine calcium <200 mg/day ...
Hypercalcemia, elevated blood calcium, has numerous causes, including [5] Elevated levels of parathyroid hormone due to hyperparathyroidism, leading to bone resorption and subsequent hypercalcemia by reducing phosphate concentration. Secretion of parathyroid hormone-related protein by certain tumors. Resorption of bone due to
Tertiary hyperparathyroidism is a condition involving the overproduction of the hormone, parathyroid hormone, produced by the parathyroid glands. [1] The parathyroid glands are involved in monitoring and regulating blood calcium levels and respond by either producing or ceasing to produce parathyroid hormone.
The plasma total calcium concentration is in the range of 2.2–2.6 mmol/L (9–10.5 mg/dL), and the normal ionized calcium is 1.3–1.5 mmol/L (4.5–5.6 mg/dL). [4] The amount of total calcium in the blood varies with the level of plasma albumin, the most abundant protein in plasma, and therefore the main carrier of protein-bound calcium in the blood.
Milk-alkali syndrome (MAS), also referred to as calcium-alkali syndrome, is the third most common cause of elevated blood calcium levels (hypercalcemia). [2] [3] Milk-alkali syndrome is characterized by hypercalcemia, metabolic alkalosis, and acute kidney injury.
Idiopathic hypercalcinuria (IH) is a condition including an excessive urinary calcium level with a normal blood calcium level resulting from no underlying cause. [1] IH has become the most common cause of hypercalciuria and is the most serious metabolic risk factor for developing nephrolithiasis. [1]