Linezolid 600 mg IV once a day is ordered for a patient. The linezolid is dissolved in 300 mL of NS and should infuse over 60 minutes. Using an IV controller, how many milliliters per hour should the linezolid be infused?

The Correct Answer is ["300"]
Calculation:
Total volume of the medication solution to be infused = 300 mL.
Infusion time = 60 minutes.
- Convert the infusion time from minutes to hours.
Infusion time in hours = 60 minutes / 60 minutes/hour
= 1 hour.
- Calculate the infusion rate in milliliters per hour (mL/hr).
Infusion rate (mL/hr) = Total volume (mL) / Infusion time (hr)
= 300 mL / 1 hour
= 300 mL/hour.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["44"]
Explanation
Calculation:
- Convert the infusion rate from milliliters per hour (mL/hr) to milliliters per minute (mL/min).
Infusion rate in mL/min = 175 mL/hr / 60 min/hr
= 2.9166... mL/min.
Tubing drop factor = 15 gtt/mL.
- Calculate the flow rate in drops per minute (gtt/min).
Flow rate (gtt/min) = Infusion rate (mL/min) × Tubing drop factor (gtt/mL)
= 2.9166... mL/min × 15 gtt/mL
= 43.75 gtt/min.
- Round the answer to the nearest whole number.
= 44 gtt/min.
Correct Answer is B
Explanation
A. Metabolic acidosis: Metabolic acidosis is caused by an accumulation of acid or loss of bicarbonate, not by carbon dioxide retention. While hypoventilation can cause a buildup of CO2, this condition is primarily associated with respiratory acidosis.
B. Respiratory acidosis: Hypoventilation leads to the retention of carbon dioxide (CO2), which increases the concentration of carbonic acid in the blood, causing a decrease in blood pH. This results in respiratory acidosis, making it the correct acid-base imbalance to focus on.
C. Metabolic alkalosis: Metabolic alkalosis occurs when there is an excess of bicarbonate or a loss of hydrogen ions, and it is not related to the retention of CO2 from hypoventilation.
D. Respiratory alkalosis:This occurs when excessive CO2 is exhaled due to hyperventilation, not hypoventilation. Hypoventilation results in CO2 retention, which leads to acidosis, not alkalosis.
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