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The JBJS Quiz of the Month is a collection of 10 relevant questions from each orthopaedic subspecialty. The questions are drawn from JBJS Clinical Classroom, which houses over 4,500 questions and 3,100 learning resources. Take the Quiz to see how you score against your peers!

NOTE: This quiz does not earn users CME credits. The questions must be answered within Clinical Classroom to earn CME credits.

Which of the following is an appropriate treatment for vitamin D-resistant rickets?
    • Increased dietary calcium intake
      • Familial hypophosphatemic rickets (vitamin D-resistant rickets) results from the inability of the renal tubes to resorb phosphates. The calcium level is normal, and an increased dietary intake of calcium is not the appropriate treatment
    • Calcitriol
      • Familial hypophosphatemic rickets (vitamin D-resistant rickets) results from the inability of the renal tubes to resorb phosphates. The standard treatment is calcitriol
    • High-dose vitamin D supplement
      • In vitamin D-resistant rickets, the vitamin D level is normal. In vitamin D-deficient rickets, there is a low vitamin D level that is treated with high-dose vitamin D supplementation
    • Recombinant human parathyroid hormone
      • In vitamin D-resistant rickets, the parathyroid hormone levels are normal. Recombinant human parathyroid hormone is used to treat recalcitrant hypocalcemia in patients with hypothyroidism

     

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