A nurse is preparing to administer promethazine 15 mg IM to a child. The amount available is promethazine 50 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 ["0.3"]
Step by step calculation:
The desired dose of promethazine is 15 mg.
The available concentration is 50 mg/mL.
Calculating the volume to administer:
Use the concentration of the medication: 15 mg ÷ 50 mg/mL = 0.3 mL
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Related Questions
Correct Answer is ["400"]
Explanation
Step by step calculation:
The nurse needs to administer 100 mL of sodium chloride.
The infusion time is 15 minutes.
Calculating the flow rate in mL/hr:
Convert the infusion time to hours: 15 minutes ÷ 60 minutes/hour = 0.25 hours
Divide the total volume by the infusion time: 100 mL ÷ 0.25 hours = 400 mL/hour
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
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