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The physician orders a Lidocaine drip to infuse at 2 mg/min. The drug is available as 2 gm in 500 ml of fluid. Solve for ml/hr.
Answer and Explanation

The Correct Answer is ["3"]

Lidocaine infusion calculation:

  • Lidocaine dose ordered: 2 mg/min
  • Lidocaine concentration: 2 gm in 500 mL
  • Conversion factor: 1 mg = 1000 mcg

Calculations:

  • Convert Lidocaine dose to mcg/min: 2 mg/min × 1000 mcg/mg = 2000 mcg/min
  • Lidocaine concentration is 2 gm in 500 mL, which equals 4000 mcg/mL.
  • Calculate mL/hr:
    • mL/hr = (2000 mcg/min × 60 min/hr) / 4000 mcg/mL = 3 mL/hr

Answer:

  • mL/hr: 3 mL/hr


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