A nurse is preparing to administer ketorolac 12 mg IV bolus to an adolescent. The amount available is ketorolac injection 15 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.8"]
Step by step calculation:
The desired dose of ketorolac is 12 mg.
The available concentration is 15 mg/mL.
Calculating the volume to administer:
Use the concentration of the medication: 12 mg ÷ 15 mg/mL = 0.8 mL
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1"]
Explanation
Step 1: Identify the conversion factor.
We need to convert milliliters (mL) to ounces (oz). The conversion factor is:
1 ounce (oz) = 30 milliliters (mL)
Step 2: Set up the conversion.
The prescribed dose is 30 mL. We want to convert 30 mL to ounces.
Using the conversion factor:
Amount in oz=Amount in mL/Conversion factor=30 mL/30 mL/oz
Step 3: Perform the calculation.
Amount in oz=30/30=1 oz
Step 4: Round the answer (if needed).
1 oz is a whole number
Correct Answer is ["0.67"]
Explanation
Identify the formula for volume to administer:
Volume (mL)=Dose ordered (mg)/Available concentration (mg/mL)
Substitute the given values:
Dose ordered = 25 mg
Available concentration = 37.5 mg/mL
Volume=25/37.5=0.6667mL.
Round to the nearest hundredth:
0.6667=0.67mL.
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