All Subjects Medicine Surgery Pathology Anatomy Pharmacology Social & Preventive Medicine Microbiology Gynaecology & Obstetrics Dental Physiology Biochemistry Pediatrics
Showing 9072 questions
Sort:
7808 Physiology

A 40-year-old developed pathological fractures and was found to be having low bone density after a Dexa Scan. Laboratory tests show low plasma calcium, elevated PTH levels, and low vitamin D levels. The patient is on a balanced diet. However, the patient’s plasma creatinine and urea are elevated markedly. Which of the following is the most likely reason for the hypocalcemia and reduced bone mass?

AExcessive urinary excretion of calcium
BImpaired secretion of calcitonin
CA parathyroid gland tumor generating excessive amounts of PTH
DReduced renal activity of 1 alpha-hydroxylase activity
Physiology
View Explanation →