A nurse is preparing to administer adenosine 12 mg IV bolus to a client. Available is adenosine injection 60 mg/20 mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["4"]
Calculation:
Determine the desired dose:
Ordered dose: 12 mg
Determine the available concentration of the medication:
Available concentration: 60 mg / 20 mL
Calculate the volume needed to administer the desired dose:
Formula: Volume (mL) = Desired dose (mg) × (Volume of solution (mL) / Available dose (mg))
= 12 mg × (20 mL / 60 mg)
= 240 mL / 60
= 4 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. The medication is for IV administration: The label clearly indicates that this is an oral suspension and not for intravenous (IV) use.
B. The medication should not be stored below 30°C (86°F): The label specifies that the medication should be stored below 30°C (86°F), but it does not imply that storing it below this temperature would be harmful, making this option incorrect.
C. The total amount available per container is 4 mL: The label clearly states that each container delivers 4 mL of the medication, making this the correct answer.
D. The nurse should avoid shaking the medication: The label explicitly instructs to shake well before using, so the nurse should shake the medication.
Correct Answer is ["50"]
Explanation
Calculation:
Determine the total units of insulin available:
Available insulin: 100 units
Determine the total volume of the solution:
Total volume: 1000 mL
Calculate the concentration of the insulin solution in units per milliliter:
Formula: Concentration (units/mL) = Total units / Total mL
= 100 units / 1000 mL
= 0.1 units/mL
Determine the desired dose of insulin per hour:
Ordered dose: 5 units/hr
Calculate the IV pump flow rate in mL/hr:
Formula: Flow rate (mL/hr) = Desired dose per hour (units/hr) / Concentration (units/mL)
= 5 units/hr / 0.1 units/mL
= 50 mL/hr
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