If a patient undergoes dialysis for 4 hours at a blood pump speed of 400 ml per minute, what is the total blood volume processed at the end of the treatment?

To determine the total blood volume processed during a dialysis session, we first need to calculate the total blood flow in milliliters over the duration of the treatment. The formula to use here involves the following:

1. Calculate the total minutes of treatment: Since the dialysis is performed for 4 hours, we convert that into minutes by multiplying:
   • 4 hours × 60 minutes/hour = 240 minutes.

2. Calculate the total blood volume processed: Next, we multiply the blood pump speed by the total minutes of treatment. The blood pump speed is given as 400 milliliters per minute. Therefore, we multiply:

   • 400 ml/min × 240 minutes = 96,000 milliliters.

3. Convert milliliters to liters: To convert milliliters to liters, we divide by 1,000 (since 1 liter is equal to 1,000 milliliters):

   • 96,000 ml ÷ 1,000 = 96 liters.

Thus, the total blood volume processed at the end of the treatment is indeed 96 liters, making that the correct choice. This calculation is crucial as it helps healthcare professionals assess the adequacy of dialysis