A patient is to receive 1 L of dextrose 5% in normal saline IV solution over 24 hr. Which of the following is the correct flow rate?

Rationale

42 mL/hr is the correct flow rate for administering 1 L of dextrose 5% in normal saline over 24 hours.

To find the flow rate in mL/hr, divide the total volume (1,000 mL) by the total time (24 hours). This results in a flow rate of approximately 41.67 mL/hr, which rounds to 42 mL/hr.

A (12 mL/hr) YOUR ANSWER

This flow rate would result in administering only 288 mL over 24 hours (12 mL/hr × 24 hr), which is significantly less than the required 1 L (1,000 mL). Therefore, this option is incorrect.

B (21 mL/hr) YOUR ANSWER

At a rate of 21 mL/hr, the total volume delivered over 24 hours would be 504 mL (21 mL/hr × 24 hr). This is still below the target of 1,000 mL and thus does not meet the requirement for the patient.

C (24 mL/hr) YOUR ANSWER

A flow rate of 24 mL/hr would yield a total volume of 576 mL (24 mL/hr × 24 hr) over 24 hours. Again, this is insufficient, as the patient needs a total of 1,000 mL.

D (42 mL/hr) CORRECT

This flow rate delivers the correct total volume of 1,008 mL (42 mL/hr × 24 hr), which meets and slightly exceeds the requirement of 1 L. This makes it the most accurate choice for the IV administration.

Conclusion

The correct flow rate for administering 1 L of dextrose 5% in normal saline over 24 hours is 42 mL/hr. This calculation ensures that the patient receives the required volume within the designated timeframe, while the other options fall short of the necessary total. Accurate flow rates are essential in IV therapy to ensure proper medication delivery and patient safety.

A patient is to receive 1 L of dextrose 5% in normal saline IV solution over 24 hr. Which of the following is the correct flow rate?

42 mL/hr is the correct flow rate for administering 1 L of dextrose 5% in normal saline over 24 hours.

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