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Dosage calculation proctored quiz ( 15 Questions)
Question 1 of 15 :
A nurse is preparing to administer digoxin 12 mcg/kg/day PO to be given in equal doses every 12 hours to a client who weighs 66 lb. Available is dig oxinelixir 0.05 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: 3.6
Calculation:
- Convert the client’s weight to kilograms
Weight = 66 ÷ 2.2
= 30 kg
- Calculate the total daily dose
Total Daily Dose = 12 mcg × 30 kg
Total Daily Dose = 360 mcg/day
- Convert mcg to mg
360 mcg = 0.36 mg/day
- Divide the total daily dose into two equal doses
Dose per Administration = 0.36 ÷ 2
Dose per Administration = 0.18 mg per dose
- Identify the available concentration
0.05 mg/mL
- Calculate the volume to administer
Volume = 0.18 ÷ 0.05
= 3.6 mL
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