A nurse is preparing to administer digoxin 8 mcg/kg/day PC divided equally every 12 hr for a preschooler who weighs 33 b. Available is digoxin elixir 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.
The Correct Answer is ["1.2"]
Step-by-step solution:
1. Convert pounds to kilograms:
1 lb = 0.453592 kg
33 lb x 0.453592 kg/lb = 14.97 kg
2. Calculate the total daily dose of digoxin:
Total daily dose = dose per kg/day x weight in kg = 8 mcg/kg/day x 14.97 kg = 119.76 mcg/day
3. Calculate the dose per administration:
Since the medication is divided into 2 doses per day,
Dose per administration = Total daily dose / number of doses = 119.76 mcg/day / 2 doses = 59.88 mcg/dose
4. Convert mcg to mg:
1 mg = 1000 mcg
59.88 mcg = 0.05988 mg
5. Calculate the volume to administer:
The medication concentration is 0.05 mg/mL.
Volume = Dose per administration / Concentration = 0.05988 mg / 0.05 mg/mL = 1.1976 mL
6. Round to the nearest tenth:
Volume = 1.2 mL
Therefore, the nurse should administer 1.2 mL of digoxin per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2560"]
Explanation
- Convert ounces to milliliters (mL):
-
1 ounce (oz) is approximately equal to 30 mL.
-
Orange juice: 12 oz * 30 mL/oz = 360 mL
-
Ice chips: 12 oz * 30 mL/oz = 360 mL (Note: Ice melts to about half its volume, so we'll divide this by 2 later)
-
Coffee: 6 oz * 30 mL/oz = 180 mL
-
Skim milk: 4 oz * 30 mL/oz = 120 mL
-
Water: 24 oz * 30 mL/oz = 720 mL
- Account for ice chips melting:
- Ice chips: 360 mL / 2 = 180 mL
- Add up all the fluid intake in mL:
- Orange juice: 360 mL
- Ice chips: 180 mL
- Coffee: 180 mL
- Skim milk: 120 mL
- Water: 720 mL
- IV fluid: 1000 mL
Total: 360 + 180 + 180 + 120 + 720 + 1000 = 2560 mL
Correct Answer is ["7.5"]
Explanation
Calculations:
Desired dose = 15 mg
Concentration = 10 mg/5 mL
Volume = Desired dose / Concentration = 15 mg / (10 mg/5 mL) = 7.5 mL
The nurse should administer 7.5 mL of codeine.
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