Question

Dosage calculations-

im not sure if im doing this right. can someone post step by step how to do each problem? Also, I am a volume/time or desired/have person. Thanks!!

7. Calculate the following blood transfusion using a pump (mL/hr). 1 unit packed red blood cells (250mL) over 2 hours. 1O ml/hr R-V Calculate the following IV piggyback infusion using a pump (mL/hr). Ranitidine 50 mg every 8 hours. IV bag contains 50 mg in 50mL NS. The order is to infuse the 50ml bag over 30 minutes. What rate will infuse the IVPB over the allotted time?-100 ml/hr If a nurse sets ½ L of D5NS to run in ate the rate of 50 mL/hr. 9. How many hours will it take to complete the infusion?ml G00 느 10 hrs600mL 1O hrs 100 10·The nurse receives an order to infuse heparin 1000 units hr. The IV bag contains 25,000 units heparin in 500mL DSW. Calculate the IV rate in mL/hr. mhr 11. Dopamine IV is ordered at 10 mcg/kg/min for a client that weighs 132 pounds. The pharmacy prepares an IV bag containing 400 mg dopamine in 250 mL D5W Calculate how many mL should be administered per hour ml/hr

Answer 1

Ans 7) 125ml/hr

Explaination:

Given: 1 unit of PCV= 250 ml

Time required to Infuse= 2 hrs via infusion pump

ml/he = 250 ÷ 2 = 125ml/hr

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8) 100ml/hr

Explaination:

IVBP infusion

Given: Ranitidine 50 mg every 8 hrs means TDS three times in a day. IV bag contains 50mg in 50 ml NS.

The order is to Infuse 50 ml over 30 mins

30 mins is 1/2 hr

ml/hr = 50÷ 1/2 = 100ml/hr

9) 10hrs

Explaination:

1/2 L of D5NS means 500ml is allowed to run at 50 ml/hr

So, 50ml/hr = 500ml/ x hr

Let x be the time required to Infuse

x= 500/50 = 10hrs

10) 20ml/hr

Explaination:

Order is to Infuse 1000units/hr of heparin.

IV bag contains 25000 units heparin in 500ml D5W

So, ml/hr= 1000/25000× 500 = 20ml/hr