<prompt> A 75 years female patient with fracture neck of femur 1 month back, presents with 2 days history of altered sensorium decreased urine output Urea is 140 mgdl, creatinine is 2 mgdl, Ca is 15.5 mgdl. All of will be useful in immediate treatment except -GiveNSFurosemideHemodialysisBisphosphonates  <response>: Answer is option 4.. Bisphosphonates Bisphosphonates have a delayed onset of action beginning after days and are not recommended in patients with renal failure Furosemide saline and dialysis act immediately Ref Harrison 19e p2481 