A patient is prescribed Ondansetron 2 mg IV stat. The medication is available as Ondansetron 4 mg/2 mL. How many milliliters should the nurse administer?
2 mL
3 mL
1mL
0.5 mL
The Correct Answer is C
Calculation:
- Identify the ordered dose and available concentration
Ordered Dose: 2 mg
Available Concentration: 4 mg/2 mL
- Calculate the volume to administer
Volume to administer = (Ordered Dose ÷ Available Dose) × Volume of Concentration
Volume to administer = (2 ÷ 4) × 2
Volume to administer = 0.5 × 2
= 1 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Calculation:
- Identify the hour and minute in 12-hour time
Hour: 3 PM
Minute: 45
- Convert PM hours to 24-hour format
For PM times (except 12 PM), add 12 to the hour: 3 + 12 = 15
- Combine the hour and minutes
= 1545
Correct Answer is D
Explanation
Calculation:
- Identify the ordered dose and tablet strength
Ordered Dose: 200 mg
Tablet Strength: 400 mg per tablet
- Calculate the number of tablets to administer
Number of Tablets = Ordered Dose ÷ Tablet Strength
Number of Tablets = 200 ÷ 400
= 0.5
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