A nurse is preparing to administer nalaxone 0.4 mg IV bolus to a client who is experiencing opioid toxicity. Available is naloxone injection 1 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it apples. Do not use a trailing zero.)
The Correct Answer is ["0.4"]
Identify the Desired Dose and Available Concentration:
Desired Dose: 0.4 mg of naloxone
Available Concentration: 1 mg/mL (This means there is 1 mg of naloxone in every 1 mL of solution)
Set up the Calculation:
We need to find the volume (in mL) that contains the desired dose of 0.4 mg.
We can use the following formula:
Volume (mL) = Desired Dose (mg) / Available Concentration (mg/mL)
Plug in the Values and Calculate:
Volume (mL) = 0.4 mg / 1 mg/mL
Volume (mL) = 0.4 mL
Round to the Nearest Tenth (if necessary):
0.4 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["4"]
Explanation
Identify the Desired Dose and Available Concentration:
Desired Dose: 5 mg of enalapril
Available Concentration: 1.25 mg/mL (This means there are 1.25 mg of enalapril in every 1 mL of solution)
Set up the Calculation:
We need to find the volume (in mL) that contains the desired dose of 5 mg.
We can use the following formula:
Volume (mL) = Desired Dose (mg) / Available Concentration (mg/mL)
Plug in the Values and Calculate:
Volume (mL) = 5 mg / 1.25 mg/mL
Volume (mL) = 4 mL
Round to the Nearest Whole Number (if necessary):
4 mL
Correct Answer is ["38"]
Explanation
Identify the Given Information:
Infusion Rate: 150 mL/hr
Drop Factor: 15 gtt/mL
Convert the Infusion Rate to mL/min:
There are 60 minutes in 1 hour.
Infusion Rate (mL/min) = 150 mL/hr / 60 min/hr
Infusion Rate (mL/min) = 2.5 mL/min
Calculate the Drip Rate (gtt/min):
Drip Rate (gtt/min) = Infusion Rate (mL/min) x Drop Factor (gtt/mL)
Drip Rate (gtt/min) = 2.5 mL/min x 15 gtt/mL
Drip Rate (gtt/min) = 37.5 gtt/min
Round to the Nearest Whole Number:
38 gtt/min
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