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  2. Vitamin B12 - Wikipedia

    en.wikipedia.org/wiki/Vitamin_B12

    Severe vitamin B 12 deficiency is initially corrected with daily intramuscular injections of 1000 μg of the vitamin, followed by maintenance via monthly injections of the same amount or daily oral dosing of 1000 μg. The oral daily dose far exceeds the vitamin requirement because the normal transporter protein-mediated absorption is absent ...

  3. Calcium in biology - Wikipedia

    en.wikipedia.org/wiki/Calcium_in_biology

    To calculate a corrected calcium in mmol/L one takes the total calcium in mmol/L and adds it to ((40 minus the serum albumin in g/L) multiplied by 0.02). [33] There is, however, controversy around the usefulness of corrected calcium as it may be no better than total calcium. [ 34 ]

  4. 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.

  5. Vitamin B12 deficiency - Wikipedia

    en.wikipedia.org/wiki/Vitamin_B12_deficiency

    The data from the National Health and Nutrition Examination Survey (NHANES) reported the prevalence of serum vitamin B 12 concentrations in the United States population between 1999 and 2002. [157] [158] Serum vitamin B 12 concentrations of < 148 pmol/L was present in < 1% of children and adolescents. In adults aged 20–39 years ...

  6. Hypercalcaemia - Wikipedia

    en.wikipedia.org/wiki/Hypercalcaemia

    Diagnosis should generally include either a calculation of corrected calcium or direct measurement of ionized calcium level and be confirmed after a week. [1] This is because either high or low serum albumin levels does not show the true levels of ionised calcium. [15]

  7. Reference ranges for blood tests - Wikipedia

    en.wikipedia.org/wiki/Reference_ranges_for_blood...

    Ionized calcium (Ca) 1.03, [20] 1.10 [5] 1.23, [20] 1.30 [5] ... (Folic acid/Folate) – Serum: Age > 1 year: 3.0 [126] 16 [126] 5 ... The INR is a corrected ratio of ...

  8. Disorders of calcium metabolism - Wikipedia

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

    Disorders of calcium metabolism occur when the body has too little or too much calcium. The serum level of calcium is closely regulated within a fairly limited range in the human body. In a healthy physiology, extracellular calcium levels are maintained within a tight range through the actions of parathyroid hormone , vitamin D and the calcium ...

  9. Anion gap - Wikipedia

    en.wikipedia.org/wiki/Anion_gap

    The calculated value of the anion gap should always be adjusted for variations in the serum albumin concentration. [15] For example, in cases of hypoalbuminemia the calculated value of the anion gap should be increased by 2.3 to 2.5 mEq/L per each 1 g/dL decrease in serum albumin concentration (refer to Sample calculations, below).