As the Nurse Is Completing the Physical Assessment of a Client

As the nurse is completing the physical assessment of a client receiving heparin therapy for deep vein thrombosis (DVT) ,the client complains of severe lumbar pain.Which is the nurse's priority action?

A) Evaluate further because this could indicate a complication of drug therapy.
B) Reposition the client to promote comfort.
C) Administer pain medication.
D) Document the finding and report it to the next shift.