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 C
Explanation
A. The medication can be used for up to 14 days after reconstitution: The label states that the reconstituted solution should be used within 48 hours and discarded afterward, making this option incorrect.
B. The medication should be reconstituted with 0.9% sodium chloride solution: The label specifies that the medication should be reconstituted with bacteriostatic water for injection USP with benzyl alcohol, not 0.9% sodium chloride solution.
C. The medication can be used for IV administration: The label states that the medication is for intramuscular (IM) or intravenous (IV) use, confirming that IV administration is appropriate.
D. The vial contains a single dose: The label indicates that this is a multiple-dose vial, meaning it can be used for more than one administration.
Correct Answer is ["4.5"]
Explanation
Calculate the Insulin Dose in Units/hr:
Dose = 0.1 units/kg/hr x 45 kg
Dose = 4.5 units/hr
Determine the Insulin Concentration in Units/mL:
Available concentration = 1 unit/mL (given in the problem)
Calculate the Infusion Rate in mL/hr:
Infusion Rate (mL/hr) = Dose in units/hr / Concentration (units/mL)
Infusion Rate (mL/hr) = 4.5 units/hr / 1 unit/mL
Infusion Rate (mL/hr) = 4.5 mL/hr
Round to the Nearest Tenth (if necessary):
4.5 mL/hr
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