PLEASE HELP ME! URGENT Dosage Calc

Nursing Students Student Assist

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Aminophylline 300 mg in 500 mL D5W to be infused over 8 hours. You have: Aminophylline 500 mg/ 10ml. How many mls of Aminophylline should be added to the bag of D5W?

PLEASE show the correct way of solving/understanding this? It has beena while since I have done these calcs. Thanks!

Specializes in Med-Surg.

Thanks Esme12, I am brushing up :) And now that I have had a little more sleep, it makes even more sense. After the practice question which sparked this thread, I took my exam and got 100%

I have always been good with dosage calcs. But when I'm tired, everything looks confusing lol And unfortunately my current schedule does not allow me the leisure of a full 8 hour sleep some days. Although that will change very soon.

Also to your remark " you will always get sidetracked when giving meds" we are taught to ask who ever needs us to wait until we are done. That is NEVER a problem for me.

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Specializes in Critical Care, ED, Cath lab, CTPAC,Trauma.
Thanks Esme12, I am brushing up :) And now that I have had a little more sleep, it makes even more sense. After the practice question which sparked this thread, I took my exam and got 100%

I have always been good with dosage calcs. But when I'm tired, everything looks confusing lol And unfortunately my current schedule does not allow me the leisure of a full 8 hour sleep some days. Although that will change very soon.

Also to your remark " you will always get sidetracked when giving meds" we are taught to ask who ever needs us to wait until we are done. That is NEVER a problem for me.

It is not really a remark....it is a fact. You will be interrupted. Remember things will be inevitable.

You will not have eight hours of sleep between 12 hour shifts. By the time you get home. shower, eat relax and fall asleep....it will be less than 8 hours of sleep when you need to get back up get ready eat and get to work on time.

You WILL be interrupted and it won't wait.

It WILL BE A PROBLEM. Whether we like it or not...we are interrupted.

Your student of the day has a question and isn't happy when you tell them no you need to wait as they sigh and roll their eyes and talk of being bullied and nurses eating their young. That you are burned out and forget how it was to be a student. How nurses aren't helpful and mean.

You will have that phone call you have been waiting or for the MD...he/she will not wait nor will he/she call back.

Lab, x-ray, CT, MRI, CATH LAB, family... is on the phone.

The ER is calling for report

There can be a code

Someone falls.

Your patient suddenly develops crushing chest pain or shortness of breath.

Your admission/post op arrives and doesn't look good!

The list is endless.

You might not always have enough sleep once you are a nurse. It is NOT an excuse. I doesn't matter if you are tired, or not feeling well..... Becoming a nurse is kind of like becoming a parent...it is NOT about you. It is about your patient.

Once again I state....you will always be distracted during med pass. Get these calculations to be like second nature. Have another nurse check your calculations if you are not sure.

You WILL encounter these calculations every single day.

THIS is The life of a nurse.

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I believe what is being said is: One has 500mg/ 10ml= 50mg/ml so if 300mg is needed, you need 6cc/ml.

Then if you were to take that 300mg and put it into a 500ml bad of Normal saline your concentration would be .6mg per cc/ml of normal saline.

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