Hesi bsn 215 rn dosage calculation nightingale college proctored exam ( 55 Questions)
The healthcare provider prescribes hydromorphone 1 mg IV every 3 hours for an older client after repair of a fractured hip. The nurse prepares the prescribed dose from an ampule labeled, Hydromorphone Injection 2 mg/1 mL. Additional instructions for opiate naive clients recommend diluting the desired dosage with 3 mL of sterile normal saline (NS) for IV push over 2 to 3 minutes. How many mL is the total volume of diluted medication? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 3.5
Calculation:
- Identify the ordered dose and available concentration
Ordered Dose: 1 mg
Available Concentration: 2 mg/1 mL
Diluent to Add: 3 mL sterile normal saline
- Calculate the volume of hydromorphone to withdraw
Volume of Medication = Ordered Dose ÷ Concentration
Volume of Medication = 1 ÷ 2
Volume of Medication = 0.5 mL
- Calculate the total diluted volume
Total Volume = Volume of Medication + Volume of Diluent
Total Volume = 0.5 + 3
Total Volume = 3.5 mL
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