A nurse is preparing to administer phenobarbital sodium 300 mg. IV bolus to a client experiencing withdrawal from benzodiazepines .Available is phenobarbital sodium injection 130 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["2.3"]
Identify the Desired Dose and Available Concentration:
Desired Dose: 300 mg of phenobarbital sodium
Available Concentration: 130 mg/mL (This means there are 130 mg of phenobarbital sodium in every 1 mL of solution)
Set up the Calculation:
We need to find the volume (in mL) that contains the desired dose of 300 mg.
We can use the following formula:
Volume (mL) = Desired Dose (mg) / Available Concentration (mg/mL)
Plug in the Values and Calculate:
Volume (mL) = 300 mg / 130 mg/mL
Volume (mL) = 2.30769 mL
Round to the Nearest Tenth:
2.3 mL
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Related Questions
Correct Answer is ["3"]
Explanation
Calculate the Dose per Administration:
The prescribed dose is 1.5 mg every 12 hours.
Calculate the Number of Doses per Day:
There are 24 hours in a day.
The medication is given every 12 hours.
Number of doses per day: 24 hours / 12 hours = 2 doses
Calculate the Total Daily Dose in Milligrams:
Dose per administration: 1.5 mg
Number of doses per day: 2
Total daily dose: 1.5 mg x 2 = 3 mg
Calculate the Total Daily Dose in Milliliters:
The available concentration is 1 mg/mL.
Total daily dose in milligrams: 3 mg
Total daily dose in milliliters: 3 mg / 1 mg/mL = 3 mL
Correct Answer is ["1800"]
Explanation
Identify the Given Dose:
The prescribed dose is 1.8 grams (g).
Convert Grams to Milligrams:
We need to convert grams (g) to milligrams (mg) because medication dosages are often expressed in milligrams.
There are 1000 milligrams in 1 gram (1 g = 1000 mg).
1.8 g x 1000 mg/g = 1800 mg
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