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The physician orders 400mg IV now. The vial is marked as 1 gram in 2.5mL. How...

The physician orders 400mg IV now. The vial is marked as 1 gram in 2.5mL. How many mL will be administered?

Expert Solution

The physician orders 400mg IV now. The vial is marked as 1 gram in 2.5mL. How many mL will be administered?

answer:1ml

Solution with formula,calculation and explanation:

Desired dose D = 400mg

dose at hand H = 1 gram.

volume at hand V = 2.5ml

Explanation::As the drug dose ordered by the physician is in milligrams (here 400 milligrams)and the vial contains the drug in grams,the dose of the drug in the vial has to be converted to milligrams to calculate the volume of the drug dose to be administered.

Conversion factor:1 gram = 1000 milligrams

applying conversion factor,

dose at hand in milligrams=dose at hand in grams * 1000milligrams per gram.

dose at hand in milligrams=1 gram * 1000milligrams per gram

dose at hand in milligrams=1000mg

dose at hand H=1000mg.

Formula:

dose= (desired dose D / dose at hand H ) * Volume at hand V

Calculation:

The standard formula for the dose calculation is applied by substituting the values given in the formula above.

dose=[400mg/1000mg] * 2.5ml

dose=[0.4] * 2.5ml

dose=1ml.

answer: 1ml of the drug in the vial will be administered as per the physician's order.

Nightingale answered 2 years ago

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