Dosage Calculations Parenteral

1. The physician writes an order for hydroxyzine hydrochloride 100 mg IM stat. You have available hydroxyzine hydrochloride for injection 50 mg/mL in a 1-mL vial.
How many millilitres should be administered to the patient? *

1 mL

1.5 mL

2 mL

0.5 mL

2. The doctor ordered nalbuphine hydrochloride 5 mg subcutaneous q3h prn for pain. The 1-mL unit dose vial is labelled nalbuphine hydrochloride 10 mg/mL injection.
How many millilitres should be given subcutaneously as needed for pain every 3 hours? *

0.25 mL

0.5 mL

0.75 mL

1 mL

3. The doctor ordered meperidine hydrochloride 60 mg IM q4h prn for pain. The label reads meperidine hydrochloride injection 75 mg/mL.
How many millilitres should be given intramuscularly every 4 hours as needed for pain? *

0.5 mL

0.8 mL

1 mL

0.75 mL

4. The physician writes an order for heparin sodium 8000 units subcutaneous BID. A vial of heparin sodium injection 10000 units/mL is available. How many millilitres should be administered to the patient subcutaneously? *

0.4 mL

0.6 mL

0.8 mL