Problema Solution

A patient weighs 90kg. He requires a particular medicne that comes in a IV bag with 250ml of medicine in 1L of solution. The medicine should be infused at a rate of 12.5 ml of medicine/10kg-hour. What should the drip rate(in ml/min)be and how long will it take to infuse all the medicine.

A. How many ml of medicine should be infused per hour?

B.How many ml of soultion should be infused per hour?

C. How many ml of solution should be infused per minute?

D.How long will it take to infuse 1L of soultion?

Answer provided by our tutors

A. How many ml of medicine should be infused per hour?


12.5*(90/10) = 112.5 ml per hour


B. How many ml of solution should be infused per hour?


let x = ml of solution


250 : 1000 = 112.5 : x


by solving we find:


x = 450 ml


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C. How many ml of solution should be infused per minute?


450 ml per hour


1 hour = 60 min


450/60 ml per min = 7.5 ml per min


D.How long will it take to infuse 1L of solution?


450 ml per hour


1L = 1000 ml = 450*(1000/450)


1 hour*(1000/450) = 20/9 hours = 2 2/9 hours = 2 hr 2*60/9 min = 2 hr 13.3 min