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5 April, 09:16

An 80 year-old with internal bleeding is admitted through the emergency room after a motor vehicle accident. the physician has ordered 2 units of packed red blood cells (1 unit is 250 ml) to infuse over 1 hour each. the drip rate on the blood administration set is10 gtt/ml. what would be the flow rate in drops per minute?

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  1. 5 April, 09:25
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    We are given:

    2 units of packed red blood cells infused over 1 hour each, so 1 unit per hour

    1 unit is equivalent to 250 ml

    10 gtt/mL

    solve for the volume per unit time:

    1 unit per hour / 1 unit / 250 mL = 250 mL per hour

    The flow rate in drops per minute is determined by:

    - converting hours to minutes:

    250 mL per hour * (1 hour / 60 minutes) = 4.2 mL per minute

    -multiplying gtt/ml to flow rate

    4.2 mL/min * 10 gtt/mL = 42 gtt/minute

    Therefore the final flow rate in drops per minute is 42 gtt per minute.
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