Question

The physician orders 250 mg of a liquid medication. on hand you have 300 mg/ 5 ml. how many milli-liters will you give?

Answer 1

To determine how many milliliters to give, we set up a proportion based on the medication concentration. The calculation results in 4.1667 mL, which is practically rounded to approximately 4.2 mL.

Step-by-step explanation:

To determine how many milliliters of medication to administer, we can set up a simple proportion based on the concentration of the medication on hand. Since 300 mg of the medication is available in 5 mL, we use this ratio to calculate the volume needed for 250 mg.

Here's the calculation:

1. Write the proportion based on the available medication:
   300 mg / 5 mL = 250 mg / x mL
2. Solve for x to find the required milliliters:
   1. Multiply both sides by x to get rid of the fraction:
   2. Divide both sides by 300 mg:
   3. Simplify to find x:
   4. Calculate the final value:
3. Since we cannot administer a fraction of a milliliter in practice, we would round to the nearest appropriate measurement, typically the nearest tenth of a milliliter. In this case, it would be approximately 4.2 mL.

Answer 2

You have 250 mg tablets; the doctor orders 1 g. ... The order is 5 mg of a drug; on hand are 1 mg tab, 2 mg tab, and 2.5 mg tab. ... 500 milliliters equals. maybe that might help.