<prompt> A 75 year old lady with fracture neck of femur presents with two days history of altered sensorium and decreased urinary output. Serum calcium is 15.5 mg dl, Urea is 140 mgdl, Creatinine is 2 mgd1. All of the following are useful for immediate management of Hypercalcemia, Except:Normal salineFurosemideDialysisBisphosphonates  <response>: Answer is D Bisphosphonates: Bisphosphonates have a delayed onset of action beginning after days and are not recommended in patients with renal failure. Bisphosphonates is the single best answer by exclusion. 