The Nurse Is Providing Care for a Client Admitted to the Hospital

The nurse is providing care for a client admitted to the hospital due to a renal stone.The physician orders that all urine be strained.Which reason does the nurse recognize as the primary purpose of straining the client's urine?

A) To verify that the stone has definitely been passed
B) In order to determine if the client can be released
C) So that pain medication can be adjusted accordingly
D) For analysis to help identify cause and treatment