Question 63

The volume needed to deliver a dose of 40 mEq is 6 tsp.

To deliver a dose of 40 mEq from a solution that has a concentration of 20 mEq per 15 mL, one would need to calculate the corresponding volume in teaspoons. This results in a requirement of 6 tsp to achieve the desired dosage.

A) 2

This option is incorrect because 2 tsp would only provide a fraction of the required dose. Given that the solution has a concentration of 20 mEq in 15 mL, 2 tsp would not suffice to deliver the needed 40 mEq.

B) 6

This option is correct as it aligns with the calculations needed for the dosage. To determine the volume required for 40 mEq from a 20 mEq/15 mL solution, one calculates that 6 tsp is necessary, confirming that this choice accurately reflects the required dosage.

C) 30

This option is incorrect because 30 tsp far exceeds the amount needed to deliver 40 mEq. Given the concentration of the solution, this would result in an unnecessarily large volume that is not required for the specified dose.

D) 40

This option is incorrect as well since 40 tsp is significantly more than required to achieve a dose of 40 mEq. The calculations indicate that only 6 tsp are necessary, making this option an excessive volume for the dose in question.

Conclusion

The correct answer is 6 tsp, as it accurately fulfills the requirement to deliver 40 mEq from the given solution concentration. All other options fail to meet the dosage requirement, either providing too little or too much volume. Hence, option B is the only valid choice based on the calculations derived from the concentration of the solution.