11/29/2023 0 Comments Lvn med math practice![]() How many tablets should you administer for each dose? The pharmacy dispenses penicillin in 250 mg tablets. How about giving it a try? Using the DA method, calculate the following dosage.Īdminister penicillin 0.5 grams p.o. Divide the numerator by the denominator for the final answer with the correct label.Īnswer: Administer 2 mL of digoxin daily. Multiply numbers across the numerator, then multiply all the numbers across the denominator. Repeat this step sequentially until all unwanted labels are canceled out. Place information with the same label as the preceding denominator into the equation in the numerator to cancel out the unwanted labels. Place mL in the numerator and 0.25 mg in the denominator. In this example, we know that the drug concentration available is 0.25 mg/mL. Step 2: On the right side, place the information given with the same label needed in the numerator. Step 1: What unit of measure (label) is needed? Place this on the left side of the equation How many mL will you need to administer a 0.5 mg dose? The drug concentration available from the pharmacy is digoxin 0.25 mg/mL. ![]() Let’s take a look an example to illustrate this method.Īdminister digoxin 0.5 mg IV daily. Don’t round any numbers in the equation until you have the final answer.
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