Morphine sulfate 10 mg IM is ordered. Morphine sulfate 5 mg/mL is available. What volume (mL) should be administered?
0.5 mL
1 mL
1.5 mL
2 mL
The Correct Answer is D
To calculate the volume to be administered, divide the ordered dose by the available concentration:
10 mg ÷ 5 mg/mL = 2 mL
The nurse should administer 2 mL of morphine sulfate 5 mg/mL to give a total dose of 10 mg.
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Related Questions
Correct Answer is A
Explanation
The Joint Commission has a list of approved medical abbreviations that should be used to prevent miscommunication and errors in healthcare settings.
Out of the abbreviations listed in the
Question , only "IV" (for intravenous) is on the Joint Commission's list of approved abbreviations.
"IU" (for international unit) is not on the list because it can be misinterpreted as "IV" (intravenous) or "10" (the Roman numeral for 10).
"QD" (for once daily) is also not on the list because it can be misinterpreted as "QID" (four times daily) or "QOD" (every other day).
"QOD" (for every other day) is also not on the list because it can be misinterpreted as "QD" (once daily) or "QID" (four times daily).
Therefore, the correct answer is A. IV.
Correct Answer is C
Explanation
To calculate the rate per hour, divide the amount of magnesium sulfate to be administered by the concentration of magnesium sulfate in the IV bag:
6 grams ÷ 40 grams = 0.15
Then, multiply the result by the volume of the IV bag, which is usually 1000 mL: 0.15 x 1000 mL = 150 mL
This is the amount of fluid that contains 6 grams of magnesium sulfate. To administer this amount over 30 minutes, multiply by 2 to get the rate per hour:
150 mL x 2 = 300 mL/hr.
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