Which of these fractures can be associated with a loss of up to 50 percent of the circulating blood volume?

Before performing puncture or cannulation of the radial artery, what should you do?

a. Fix and tighten a tourniquet above the an-tecubital fossa. b. Perform the Allen test to ensure collateral circulation. c. Inject heparin into the adjoining subcuta-neous tissues. d. Apply firm pressure to the arterial site for 5 min.

Nephrostomy, nephrotomy with drainage. Assign the CPT code