Problem: A client with chronic lower back pain has been taking the non-steroidal anti-inflammatory drug (NSAID) ibuprofen, by mouth twice a day for several months. Which assessment 1s most important for the nurse to complete! A. AsseSS Dack pain using numeric scale B. Palpate volume of pedal pulses C. Determine presence of abdominal pain D. Evaluate ongoing sleep patterns. Need Assignment Help?