A 50-year-old African american woman presents to your clinic with increased thirst and increased urination. You review her old records and it appears like she had a Chest X-ray in the ER last year that showed bilateral hilar lymphadenopathy. She was advised follow-up but she did not comply at that time. Upon examination, you discover some subcutaneous skin nodules and biopsy of one of these comes back positive for non-caseating granulomas.
Laboratory studies from a week ago show:
Calcium : 11.6mg%
Creatinine : 1.0mg%
Which of the following investigations may explain the underlying mechanism of her Hypercalcemia?
A. Biopsy of Hilar Lymph Node
B. 25 Hydroxy Vitamin D Level
C. PTH related peptides
D. 1,25 di-hydroxy Vitamin D level
E. Serum Protein Electrophoresis
Filed under: USMLE STEP III QUESTION BANK, USMLE Test Prep | Tagged: ARCHER FLUID AND ELECTROLYTES, ARCHER NEPHROLOGY, ARCHER STEP3 LIVE REVIEWS, ARCHER STEP3 RAPID REVIEW, Foundations of Independent Practice (FIP), lab interpretation, Pathophysiology correlation, usmle step 3 nephrology |