A nurse is preparing to administer digoxin 8mcg/kg/day PO to divide equally every 12hr for a preschooler who weighs 33lb. Available is digoxin elixir 0.05mg/mL. How many mL should the nurse administer per dose? Round off to the nearest tenth. Use a leading zero. Do not use a trailing zero.
The Correct Answer is ["1.2"]
Let's calculate the dosage step-by-step:
1. Convert pounds to kilograms:
33 lbs x 0.453592 kg/lb ≈ 14.97 kg
2. Calculate the total daily dosage:
8 mcg/kg/day x 14.97 kg ≈ 119.76 mcg/day
3. Calculate the dosage per dose (divided equally every 12 hours):
119.76 mcg/day / 2 doses ≈ 59.88 mcg/dose
4. Convert micrograms to milligrams:
59.88 mcg = 0.05988 mg
5. Calculate the volume needed from the elixir:
0.05988 mg / 0.05 mg/mL ≈ 1.2 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["84.1"]
Explanation
-
Convert the client's weight to kilograms:
- 185 lbs / 2.2 lbs/kg = 84.09 kg (approximately)
-
Calculate the dose:
- 1 mg/kg * 84.09 kg = 84.09 mg
-
Round to the nearest tenth:
- 84.1 mg
Correct Answer is ["2"]
Explanation
To calculate the correct dosage, let's use the following steps:
Step 1: Determine the ratio of milligrams per capsule from the available capsules.
The available capsules are labelled "25 mg/capsule." This means that for every 1 capsule, there are 25 milligrams of chlordiazepoxide.
Step 2: Calculate the number of capsules needed for 50 milligrams.
We can set up a proportion to solve for the unknown number of capsules:
(25 mg) / (1 capsule) = (50 mg) / (x capsules)
Cross-multiplying:
25 mg x x capsules = 1 capsule x 50 mg
Step 3: Solve for x (the number of capsules).
Divide both sides of the equation by 25 mg:
x capsules = (1 capsule x 50 mg) / (25 mg)
x capsules = 2 capsules
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