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  2. Hypocalcemia - Wikipedia

    en.wikipedia.org/wiki/Hypocalcemia

    Hypocalcemia is a medical condition characterized by low calcium levels in the blood serum. [5] The normal range of blood calcium is typically between 2.1–2.6 mmol/L (8.8–10.7 mg/dL, 4.3–5.2 mEq/L), while levels less than 2.1 mmol/L are defined as hypocalcemic.

  3. Calcium in biology - Wikipedia

    en.wikipedia.org/wiki/Calcium_in_biology

    In contrast, ionized calcium is a measure of free calcium. An abnormally high level of calcium in plasma is termed hypercalcemia and an abnormally low level is termed hypocalcemia, with "abnormal" generally referring to levels outside the reference range.

  4. Calcium metabolism - Wikipedia

    en.wikipedia.org/wiki/Calcium_metabolism

    Calcium regulation in the human body. [6]The plasma ionized calcium concentration is regulated within narrow limits (1.3–1.5 mmol/L). This is achieved by both the parafollicular cells of the thyroid gland, and the parathyroid glands constantly sensing (i.e. measuring) the concentration of calcium ions in the blood flowing through them.

  5. Low calcium, magnesium levels tied to poorer cognitive ... - AOL

    www.aol.com/low-calcium-magnesium-levels-tied...

    Older adults with calcium and magnesium deficiencies also had poorer cognitive performance compared to peers with adequate micronutrient levels, a recent study has found.

  6. Disorders of calcium metabolism - Wikipedia

    en.wikipedia.org/wiki/Disorders_of_calcium...

    The amount of biologically active calcium varies with the level of serum albumin, a protein to which calcium is bound, and therefore levels of ionized calcium are better measures than a total calcium; however, one can correct a total calcium if the albumin level is known. [citation needed]

  7. Neonatal hypocalcemia - Wikipedia

    en.wikipedia.org/wiki/Neonatal_hypocalcemia

    Healthy term infants go through a physiological nadir of serum calcium levels at 7.5 - 8.5 mg/dL by day 2 of life. Hypocalcemia is a low blood calcium level. A total serum calcium of less than 8 mg/dL (2mmol/L) or ionized calcium less than 1.2 mmol/L in term neonates is defined as hypocalcemia. In preterm infants, it is defined as less than 7mg ...

  8. Chvostek sign - Wikipedia

    en.wikipedia.org/wiki/Chvostek_sign

    The Chvostek sign (/ ˈ k v ɒ s t ɪ k /) is a clinical sign that someone may have a low blood calcium level (a decreased serum calcium, called hypocalcemia).The Chvostek sign is the abnormal twitching of muscles that are activated (innervated) by the facial nerve (also known as Cranial Nerve Seven, or CNVII). [1]

  9. Many young women and girls have low levels of this essential ...

    www.aol.com/news/many-young-women-girls-low...

    Almost 40% of American teenage girls and young women had low levels of iron, ... She advises not taking the supplements with calcium-rich foods because calcium can block the absorption of iron.