The physician orders glycopyrrolate 220 mcg IM now. The pharmacy supplies medication with the following information on the label
Glycopyrrolate Injection, USP
.
FOR IM OR IV ADMINISTRATION
1 mL Single Dose Vial
How many milliters will the nurse administer?
0.11 mL
1 mL
1.1 mL
11 mL

To calculate the volume of glycopyrrolate to administer, you need to convert the ordered dose from micrograms (mcg) to milligrams (mg). Since 220 mcg is equal to 0.22 mg, and given that the concentration of the medication is 0.2 mg/mL, you can use the formula:

Volume (mL) = Dose (mg) / Concentration (mg/mL).
Thus, Volume = 0.22 mg / 0.2 mg/mL = 1.1 mL.

So, the nurse will administer 1.1 mL.

When administering medications, it’s crucial to double-check calculations and ensure accuracy in dosing. It can be easy to mix up units or forget to convert, which is why validating your math by repeating the process or using a different method can help catch any potential mistakes. Always confirm with a colleague or a pharmacist if unsure!