A physician orders a patient to receive 0.6 mg of a medication intramuscularly and it is available at a concentration of 0.4 mg/mL. How much should be drawn?

To determine the correct volume of medication to draw for administration, you need to use the available concentration of the medication to calculate how much volume corresponds to the desired dose.

The patient requires a dose of 0.6 mg, and the medication is available at a concentration of 0.4 mg/mL. To find out the volume that contains 0.6 mg, you can use the formula:

[ \text{Volume (mL)} = \frac{\text{Desired Dose (mg)}}{\text{Concentration (mg/mL)}} ]

Substituting the values into the formula gives:

[ \text{Volume (mL)} = \frac{0.6 \text{ mg}}{0.4 \text{ mg/mL}} ]

Calculating this results in:

[ \text{Volume (mL)} = 1.5 \text{ mL} ]

This means that to achieve the administration of 0.6 mg of the medication, you need to draw 1.5 mL from the vial, as that volume contains the required dose at the given concentration. Thus, the correct amount to be drawn is indeed 1.5 mL.