Dorothy is a 70-year-old female with the following test results:Vitamin D = 9 ng/mL (20 - 50 ng/mL)Calcium = 7.0 mg/dL (8.5 - 10 mg/dL)Based upon these values (normal ranges in parenthesis), predict what the parathyroid hormone (PTH) result would be.

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Dorothy is a 70-year-old female with the following test results:
  • Vitamin D = 9 ng/mL (20 - 50 ng/mL)
  • Calcium = 7.0 mg/dL (8.5 - 10 mg/dL)
Based upon these values (normal ranges in parenthesis), predict what the parathyroid hormone (PTH) result would be.

Please select the single best answer