Drug calculation with reconsitution?

[ChaeF]

Hi,

On a dosage exam there was a question where there were several concentrations given for reconstitution and we were to choose which concentration was the best. You can use any concentration really, but is it best to go with the concentration that will yield less mL to inject in the end?

Also , we were asked a question about mL/min on an IV calculation question. I'm in my last semester and of the the exams we've never been asked this, only mL/hr...is this normal lol it kind of caught me off guard (they decided to administer the test online this semester... )

[Rose_Queen, BSN, MSN, RN]

More information would be needed. Is this an IM injection, sub-q injection, subnormal injection, IV....

Pretty much anything can go on a calculation test- mL/hour to mL/min is a very simple conversion and is probably intended to see how well you are reading the information provided. In the real world, you will be checking mL/hr, mL/min, mL/kg/min, mL/kg, mcg/hr, mcg/min, mcg/kg, mcg/kg/min....................

[ChaeF]

I can't remember the problem exactly, but it was for an IM injection. There were three concentrations. I assumed that the concentration that allowed the nurse to fill the order with the least dose given was correct. (Like injection 2mL vs 3 for example)

[applesxoranges, BSN, RN]

The answer should be it depends on what the medication is and what the medication requires. The question should have been clearer or allowed you to look up the medication.

[pmabraham, BSN, RN]

ChaeF , typically you want to pick the concentration that works with the syringe you are using, and the intended injection site (i.e. deltoid muscle, typically 1 mL or less).