Question

You mix a powder drug with a 4.5ml of liquid to get a reconstituted solution with a concentration of 250mg/ml. The prescribers order is for 500 mg . You will give what ml of the reconstituted solution

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Seamus

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STEP BY STEP SOLUTION:
To find out how much of the reconstituted solution to give, you can use the formula:
\[ \text{Volume} = \frac{\text{Amount of Drug}}{\text{Concentration}} \]
Given:
- Amount of Drug (A) = 500 mg
- Concentration (C) = 250 mg/ml
Substitute these values into the formula:
\[ \text{Volume} = \frac{500 \, \text{mg}}{250 \, \text{mg/ml}} \]
\[ \text{Volume} = 2 \, \text{ml} \]
ANSWER:
So, you would give 2 ml of the reconstituted solution to meet the prescriber's order of 500 mg.

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