A nurse is preparing to administer digoxin 0.25 mg PO daily. The amount available is digoxin 0.125 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["2"]
To calculate the number of tablets needed, we'll set up a proportion:
x tablets / 0.25 mg = 1 tablet / 0.125 mg
Cross-multiplying:
0.125x = 0.25
Solving for x:
x = 0.25 / 0.125
x = 2
Therefore, the nurse should administer 2 tablets of digoxin daily.
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Related Questions
Correct Answer is ["1.2"]
Explanation
To calculate the dose of digoxin for the preschooler, we'll follow these steps:
Step 1: Convert the child's weight from pounds to kilograms:
33 pounds x (1 kg / 2.20462 pounds) ≈ 15 kg
Step 2: Calculate the total daily dose of digoxin:
Total Daily Dose (mcg) = Digoxin Dose (mcg/kg/day) x Weight (kg)
Total Daily Dose = 8 mcg/kg/day x 15 kg
Total Daily Dose = 120 mcg/day
Step 3: Calculate the dose per administration (BID):
Dose per Administration = Total Daily Dose / Number of Administrations per Day
Dose per Administration = 120 mcg/day / 2 doses/day
Dose per Administration = 60 mcg/dose
Step 4: Convert micro-grams to milligrams:
60 mcg x (1 mg / 1000 mcg) = 0.06 mg
Step 5: Calculate the volume to be administered:
Volume (mL) = Desired Dose (mg) / Concentration (mg/mL)
Volume = 0.06 mg / 0.05 mg/mL
Volume = 1.2 mL
Therefore, the nurse should administer 1.2 mL of digoxin elixir per dose.
Correct Answer is ["2"]
Explanation
To calculate the number of capsules needed, we'll set up a proportion:
x capsules / 50 mg = 1 capsule / 25 mg
Cross-multiplying:
25x = 50
Solving for x:
x = 50 / 25
x = 2
Therefore, the nurse should administer 2 capsules of chlordiazepoxide per dose.
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