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Calcium determination in primary hyperparathyroidism.

J H Ladenson1

  • 1Department of Pathology, Washington University School of Medicine, St. Louis, Missouri.

Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research
|October 1, 1991
PubMed
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Accurate blood calcium monitoring is crucial for managing hyperparathyroidism. This review details precise methods for measuring total and free (ionized) calcium levels, essential for patient care.

Area of Science:

  • Biochemistry
  • Clinical Chemistry
  • Endocrinology

Background:

  • Calcium is a tightly regulated substance in blood, with minimal biologic variation.
  • Accurate measurement of calcium is vital due to its critical physiological roles.
  • Primary hyperparathyroidism necessitates precise calcium level monitoring.

Purpose of the Study:

  • To review methods for precise measurement of total calcium in blood.
  • To review methods for precise measurement of free (ionized) calcium in blood.
  • To inform the monitoring of calcium in patients with asymptomatic primary hyperparathyroidism.

Main Methods:

  • Discussion of analytical procedures for total calcium determination.
  • Discussion of analytical procedures for free (ionized) calcium determination.

Related Experiment Videos

  • Literature review focusing on precision and accuracy in calcium assays.

    • Main Results:

    • Total calcium exhibits approximately 2% biologic variation.
    • Free (ionized) calcium shows only 1% biologic variation, demanding high precision.
    • Accurate assays are critical for differentiating normal from abnormal calcium levels.

    Conclusions:

    • Precise analytic methods are indispensable for reliable blood calcium monitoring.
    • Monitoring both total and free calcium is important for managing primary hyperparathyroidism.
    • This review provides an overview of essential calcium measurement techniques.