The RN is to calculate gtt/min to transfuse one unit (300 ml) of Packed Red Blood Cells (PRBC) over two hours using blood tubing that has a drop factor of 10. How many gtts/min will be infused?

Rationale: A. This is incorrect, check rationale for choice C for stepwise calculation. B. This is incorrect, check rationale for choice C for stepwise calculation. C. Step 1: Write the formula: gtt/min = (Volume × Drop factor) ÷ Time Step 2: Plug in the numbers: gtt/min = (300 × 10) ÷ 120 Step 3: Multiply: 300 × 10 = 3000 Step 4: Divide: 3000 ÷ 120 = 25 Step 5: Result: Infuse at 25 drops per minute D. This is incorrect, check rationale for choice C for stepwise calculation.