Med Math Examples
- 6For reasons of which I'm not really sure, I'm inclined to start a thread populated with med math examples. I'm going to pose some questions and then work them through. I'm going to utilize an equation editor so that they're very easy to follow (the AN text editor really lacks in this regard). They'll show as images.
If you have specific questions that you'd like addressed, PM me and I'll use those for future additions to the thread.
Please refrain from posting problems in the thread simply because I'm hoping to keep it tidy and not end up with multiple people posting the same answers over and over and I'd like to avoid the mess that the text editor creates.
I'll also entertain chemistry or physics problems (meaning NOT explanations of concepts but simply worked out examples).
~~~~~~~~~~~~ Here's the first one ~~~~~~~~~~~~~~~~~~~~
The physician orders an insulin drip at 8 units per hour. Your facility policy states that insulin must be mixed by placing 100 units in a 100 mL bag of NS. However, due to a recent shortage, you only have 50 mL bags of NS.
How much insulin do you place in the bag?
At what rate (mL/hr) do you set your pump?
How much insulin will the patient have received after 20 minutes?
- 2Here's another one:
The patient is on a dopamine drip. The physician orders the dopamine increased to 25 mcg/kg/min. The patient weighs 177 kg. The dopamine is supplied in a concentration of 3.2 mg/mL in a 250 mL bag.
At what rate, in mL/hr, will you set your pump?
You are preparing the patient for a long ground transport. You check the pump and see that 177 mL have infused so far. The physician asks you how long the bag will last (assuming that the rate doesn’t change).
You tell the doc, “0.88 hours, ma’am.” With a slight chuckle she asks you if that will get the patient through the 50 minute transport. Will it?
Better make sure there’s another bag on the ambulance…
- 1Quote from GrnTeaWe'll see how it goes. If it proves to be no fun for me then I'll just stop. Got lots of other demands on my time, anyway.I like the concept. Good luck on the execution-- not yours, that's fine, but the rest of the input you're bound to get (and have already anticipated).
I'd "LIKE" your post but not button is there to be seen :-)
- 2A client weight 187 lbs is receiving aminophylline 0.4 g in 500 mL of 0.9% saline solution at a rate of 80 mL/hr. You know that a therapeutic level for this drug is 0.4mg/kg/hr. Calculate the client's current infusion rate and determine how much drug per hour the client is receiving. Is this dosage subtherapeutic, therapeutic, or toxic?
- 1Sep 19, '12 by ♪♫ in my ♥Quote from brilloheadAgreed... some people have difficulty, however, with the idea that numbers and units are algebraically equivalent, hence the decision not to skip any steps at all.If it's okay to jump on board here, I'd like to offer this advice:
Don't let yourself make it too complicated!!!! You're just multiplying by one!!!!!
My personal approach is to do a quick-solve in my head and then work it out in full detail to ensure that I get the same answer... internal consistency increases the likelihood of accuracy.