can someone help with these nursing dosage calculations problems? A child has a
ID: 917308 • Letter: C
Question
can someone help with these nursing dosage calculations problems?
A child has a BSA of 0.82 m2. The recommended dose of a drug is 2 million units/m2. How many units will you administer? (m2 = meter squared) Order: D5W 1,250 mL IV ql2h. Drop factor = 10 drops/mL. Calculate the flow rate in gtts/min. Order: 0.9% NaCI 250 mL in 4 hours. What's the flow rate in microdrops/minute? Order: Tube feeding 240 mL in 90 minutes. Drop factor = 20 gtt/mL. Calculate flow rate in mL/hr. Order: 500 mL 5% D/W to infuse in 5 hours. Drop factor = 15 gtt/min. Calculate flow rate in gtt/min.Explanation / Answer
(2000000 units)/m2 = X/0.82 m2
X = 2000000*0.82
X = 1640000 units
Flow rate (in gtt/min) = (Volume to be infused (in mL) x Drop factor)/Total infusion time (in minutes)
Total infusion time in minutes = 12 hours x 60 = 720 minutes
= (1250 x 10)/720
= 17.36 gtt/min
6)Flow rate in microdrops
Hours to be converted to minutes = 4 x 60 = 240 minutes
Drip factor for microdrops = 60
= (250ml/240) x 60
= 62.5 µgtts/min
7. Flow rate in ml/hr
Flow rate (in gtt/min) = (Volume to be infused (in mL) x Drop factor)/Total infusion time (in minutes)
Flow rate = (240*20)/90
= 4800/90
= 53.33 gtt/min
So 1gtt = 3 ml/hour
= 53.33 x 3
= 159.9 ml/hr
8. Flow rate (in gtt/min) = (Volume to be infused (in mL) x Drop factor)/Total infusion time (in minutes)
Total infusion time in minutes = 5 hours x 60 = 300 minutes
= (500 x 15)/300
= 25 gtt/min
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