Estimation of Serum Calcium in Biochemistry
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Estimation of Serum Calcium in Biochemistry

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Questions and Answers

What is the primary function of calcium in the body?

  • Assisting in blood clotting
  • Enhancing lung capacity
  • Promoting kidney health
  • Maintaining proper muscle and nerve function (correct)

    • What does the corrected calcium test measure?

  • Total calcium concentration
  • Calcium excretion by the kidneys
  • Ionized calcium levels
  • Calcium adjusted for albumin concentration (correct)

    • Which hormone controls the amount of calcium in the blood?

  • Parathyroid hormone (PTH) (correct)
  • Insulin
  • Thyroid-stimulating hormone (TSH)
  • Estrogen

    • What does urine calcium test indicate?

    <p>Calcium excretion by the kidneys</p> Signup and view all the answers

    Why is corrected calcium important in assessing calcium levels?

    <p>It accounts for abnormal albumin concentrations affecting total calcium</p> Signup and view all the answers

    In what conditions can calcium be used as a diagnostic test?

    <p>Neurological disorders</p> Signup and view all the answers

    Why might a doctor request a calcium test for an individual with kidney disease?

    <p>To check for low calcium levels common in those with kidney failure</p> Signup and view all the answers

    Why is it important to separate serum or plasma from blood cells soon after collection?

    <p>Prolonged contact with the clot may cause artificially low calcium values</p> Signup and view all the answers

    Which wavelength is used for measuring absorbance during the colorimetric determination of calcium?

    <p>575 nm</p> Signup and view all the answers

    What is the expected normal blood calcium level range for adults?

    <p>8.5 - 10.2 milligrams/deciliter</p> Signup and view all the answers

    Why might a doctor request a urine calcium test for an individual?

    <p>To monitor calcium excretion in individuals with kidney stones</p> Signup and view all the answers

    What happens if fresh serum collected in the fasting state is not separated from blood cells promptly?

    <p>The calcium levels in the serum will be artificially elevated</p> Signup and view all the answers

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