What is hypercalcemia most often associated with?
a. Hyperparathyroidism
b. Kidney failure
c. Pancreatitis
d. Trauma
ANS: A
Hypercalcemia (increased levels of calcium) can result from numerous disorders. The most com-mon causes are hyperparathyroidism (increased intestinal calcium absorption) and in malignancies (e.g., multiple myeloma, lung cancer). Normal values for serum Mg2+ range from 1.7 to 2.1 mg/dl (1.3 to 2.1 mEq/L) in healthy adults.
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