What is the normal serum calcium concentration in the body?

The normal serum calcium concentration in the body typically ranges from 9 to 10.5 mg/dL. This range is important for various physiological functions, including muscle contraction, blood clotting, and nerve transmission. Maintaining serum calcium levels within this range is critical for homeostasis, and both hypercalcemia (high calcium levels) and hypocalcemia (low calcium levels) can lead to significant health issues. Calcium levels can be influenced by factors such as dietary intake, hormonal regulation (particularly by parathyroid hormone and vitamin D), and the function of the kidneys. Recognizing the normal range helps in the assessment and management of conditions related to calcium metabolism.