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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Osmosis: Osmosis is the process of moving water across a semi-permeable membrane from an area of lower particle concentration (lower solute concentration) to an area of higher particle concentration (higher solute concentration). This is a passive process and doesn’t require energy.
B. Filtration: Filtration is the process by which fluid and solutes are forced through a membrane by hydrostatic pressure, from an area of higher pressure to an area of lower pressure.
C. Diffusion: Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration, not specifically involving water or particle concentration differences.
D. Active transport: Active transport requires energy to move particles against a concentration gradient (from lower to higher concentration). This process differs from osmosis, which is a passive process.
Correct Answer is A
Explanation
A. Diabetes mellitus: Diabetes mellitus, particularly when poorly controlled, can lead to diabetic ketoacidosis (DKA), which is a common cause of metabolic acidosis. In DKA, the body produces excessive acidic ketones due to a lack of insulin, leading to a decrease in blood pH and the development of metabolic acidosis.
B. Myasthenia gravis: Myasthenia gravis is a neuromuscular disorder characterized by muscle weakness, but it does not directly affect the body’s acid-base balance. It is not a condition that leads to metabolic acidosis.
C. Asthma: Asthma can cause respiratory acidosis if there is significant hypoventilation or airway obstruction, but it is not a cause of metabolic acidosis. Asthma mainly affects the respiratory system, leading to a potential for CO2 retention, not metabolic acidosis.
D. Cancer: While cancer can contribute to various metabolic disturbances, it is not a direct cause of metabolic acidosis unless there are complications such as kidney failure, severe infections, or tumor lysis syndrome. Diabetes mellitus is a more common and direct cause of metabolic acidosis
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