Description
Calcium is one of the main intracellular cations. Its main amount is contained in bone tissue (about 99%). In the body, calcium is physiologically active only in the form of a cation (Ca++), which is present in large quantities in blood plasma. Calcium is excreted by the kidneys in ionized form and in the form of compounds with other ions. Calcium performs a number of very important functions in the body: it is a structural element ensuring the structural integrity of bone tissue, serves as one of the factors influencing the conduction of nerve impulses, and ensures the function of many enzymes. The level of calcium excretion in urine per day may have clinical significance in disorders of calcium metabolism in bone tissue, its deficiency in food, vitamin D hypovitaminosis, and hormonal disorders. Increased excretion in urine is observed in: hyperparathyroidism, malignant neoplasms (sarcoma, osteosarcoma), myeloma, osteoporosis, Itsenko-Cushing syndrome, renal tubular acidosis, thyrotoxicosis, Paget's disease, sarcoidosis, acromegaly, idiopathic hypercalciuria.
A decrease in concentration is possible in: hypoparathyroidism (not always), pseudohypoparathyroidism, rickets, osteomalacia, hypothyroidism, acute nephritis, nephrosis, acute pancreatitis, malabsorption (malabsorption syndrome, celiac disease), liver cirrhosis.
Indications for the analysis:
1. Diagnosis of kidney diseases
2. Diagnosis of endocrine diseases
3. Diagnosis of malignant neoplasms
Period of execution
Within 2 days. The specified time does not include the day of biomaterial collection
Biomaterial type