Ten (10) milliliters of 10% calcium gluconate injection and 10 ml of multivitamin infusion are mixed with 500 ml of a 5% dextrose injection. the infusion is to be administered over 5 hours. if the dropper in the vencolysis set calibrates 15 drops/ml, at what rate, in drops per minute, should the flow be adjusted to administer the infusion over the desired time interval?

26 drops per minute

Explanation:

First, I added up the total volume: 10 ml plus 10 ml plus 500 ml. I get a total of 520 ml that should be administered  in five hours.

Since they ask for minutes, I change those fiver hours to minutes by multiplying them by 60, which gives me a total of 300 minutes.

Since there are 15 drops per ml, I now multiply that number by the total volume (520), giving me a total of 7800 drops.

Now, I just have to divide 7800 and 300. This gives me the number of drops I need per minute: 26

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