Review Question - QID 219171

An 88-year-old male presents to a community hospital emergency room just before midnight after a fall at his nursing home with the injury shown in Figure A. He has a history of fibromyalgia, well-controlled hypertension on a single agent, chronic kidney disease that is not dialysis dependent, and diabetes with a Hemoglobin A1c of 8.2%. The local orthopaedic surgeon is consulted, along with a hospitalist who has ordered a new echocardiogram. The emergency medicine physician has started fluid replacement, placed a foley catheter, and is planning to perform a fascia iliaca block for pain control. Which of the following has been shown to cause a delay in time to definitive surgical fixation for this patient's fracture?