IV Math Problems HELP!!!!!

Nursing Students General Students

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Hi everyone!

These problems have me confused! If anyone has time to tackle them I'd be really appreciative! (I think the first one is 12 ml/hr) I have a pass/fail math exam in a few weeks and I'm stressed! Thanks alot for your time!

2. Your CCU patient is currently receiving heparin sodium 800units/hr/. The PTT is lower than expected so the physician orders heparin sodium to be increased to 1200units/hr. Your bag of solution is labeled 25,000 units in 250ml of D5W. What IV rate will set on the pump to deliver the correct dose of heparin? ___________ml/hr

5. Dopamine drip at 250mcg/min is ordered. You have the standardized hospital solution of 200mg in 250ml of D5W. You have micro drip tubing 60gtts/ml available. How many drops/min will deliver the correct dose?

Thank you guys so much for explaining. My prior belief was dividing by 60 min to acquire per minute. Your explanations make perfect sense and thanks to everyone for your time and patience! I've never seen a problem like this before so thanks again!

Team Player, I think you would really benefit from a book on dimensional analysis for medical dosages. It's a consistent and simple technique that sorts the logic out for you automatically. Then you just have to worry about arithmetic errors - and we all make them!

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Specializes in med/surg, telemetry, IV therapy, mgmt.

there are links to dimensional analysis tutorials on post #3 of this sticky thread:

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