In hypercalcemic crisis but in surgery lecture

diuretic are not used in hypercalcemic crisis but in surgery lecture it is used.
What to be followed sir?

After bisphosphonates iv furosemide drip (NOT Bolus) can be used. Especially when patient is having concomitant heart failure and renal injury then to increase the output and prevent volume overload due to over-hydration with NS, diuretics is added.

Loop looses calcium