Caiculator Aprescription order is written for 40 mg of a drug. It is available in a 10 mL vial with a concentration of 25 mg/mL. How many mL are needed for the ordered dose?

Rationale

1.6

To determine the volume of medication needed, divide the prescribed dose by the concentration of the drug in the vial. In this case, dividing 40 mg by 25 mg/mL gives the volume required in milliliters, which equals 1.6 mL.

A (0.625) YOUR ANSWER

This value is incorrect because it results from dividing the prescribed dose by the concentration in a way that does not match the given scenario. Dividing 40 mg by 25 mg/mL should yield a higher volume due to the lower concentration of the drug in the vial.

B (1.6) CORRECT

Correct! By dividing the prescribed 40 mg by the concentration of 25 mg/mL, the calculation yields the required volume of 1.6 mL to be drawn from the 10 mL vial to administer the specified dose accurately.

C (6.25) YOUR ANSWER

This choice represents an incorrect calculation as it seems to multiply instead of divide the prescribed dose by the concentration. The result is significantly higher than the actual volume needed for the ordered dose of 40 mg.

D (16) YOUR ANSWER

The value of 16 mL is not accurate for this scenario. It appears to be a misinterpretation of the calculation needed to find the correct volume based on the given prescription and drug concentration, leading to an inflated and incorrect answer.

Conclusion

Calculating medication doses based on prescribed amounts and drug concentrations is crucial for accurate administration. In this case, dividing the prescribed dose by the concentration in the available vial accurately determines the volume required, leading to the correct answer of 1.6 mL for administering 40 mg of the drug. This method ensures precise medication delivery and patient safety in clinical practice.

Caiculator Aprescription order is written for 40 mg of a drug. It is available in a 10 mL vial with a concentration of 25 mg/mL. How many mL are needed for the ordered dose?

1.6

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