Which of the following is true about secondary hyperparathyroidism?: (A) Commonly occurs in CRF, (B) Related to hyperphosphatemia, (C) Patients are generally hypocalcemic, (D) All of the above
Answer is D. SECONDARY HYPERPARATHYROIDISM-MC cause is Chronic renal failure-May occur in hypocalcemia secondary to inadequate calcium or vitamin D intake, or malabsorption.-Related to hyperphosphatemia (and resultant hypocalcemia)-Deficiency of 1,25-dihydroxy vitamin D due to loss of renal tissue-Low calcium intake-Decreased calcium absorption