Patient Scenario: Low PTH, hyperphosphatemia & low/normal calcium

 

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Assessing the Clinical and Laboratory Parameters

 

Prior Parathyroidectomy? Low or undetectable PTH levels are an expected finding.

Parathyroids intact (or partially resected/reimplanted  during prior PT surgery)? PTH secretion may be suppressed secondary to over-use of calcium based binders and/or use of vitamin D analogues; Parathyroid gland remains sensitive to ambient ionized calcium, i.e. is not autonomous

Approximately 12% of all patients are in this category.

 

 

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