Within 14 days of registration: Serum calcium =< 11.5 mg/dL
Documented within 14 days of registration: Calcium: >= 7 mg/dL
Calcium (MM only): corrected calcium < 11.5 mg/dL within 2 weeks prior to study registration
Within 14 days of step 1 registration, unless corrected prior to step 1 registration: Serum calcium (ionized or adjusted for albumin) < 7 mg/dl or > 12.5 mg/dl
Serum calcium < 11 mg/dL, obtained =< 42 days prior to registration; note: patients with hypercalcemia can be enrolled after the calcium is corrected with standard of care treatments