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4. A Physician orders 40 mL of an IV solution containing ampicillin to run in 30...

4. A Physician orders 40 mL of an IV solution containing ampicillin to run in 30 minutes with a microdrop infusion set. This is to be followed by 500 mL of NS to infuse at 50 drops per minute with an infusion set of 20 gtt/mL. a) What is the flow rate for the ampicillin solution? b) What is the total infusion time for the two IV solutions?

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Expert Solution

4.a) drops per minute = (total volumes × drop factor ) ÷ time in minutes

Total volume = 40ml

Drop factor = 20gtt/ ml

Time = 30minutes

Flow rate = (40 ×20) ÷3 =26.6drops/min

therefore, flow rate of the ampicillin solution = 26.6drops/min

b) infusion time =(total volume to infuse ÷mL per hour being infused)

20drops =1ml

50drops/minute = 2.5ml / minute

Milliliter per hour being infused=2.5ml×60 = 150ml/hr

Infusion time of NS = 500ml÷ 150ml=3hrs +33min

Total infusion time for the two IV solution = (3hrs + 33min) +30 min

= 4hrs+3 minutes

Nightingale answered 2 years ago
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