Difficulty: Hard

Average Score: 39%

The recommended dosage of a medicine is 4 milligrams per kilogram of body weight.

What is the recommended dosage, in milligrams, for a person who weighs 84 kilograms?

Rationale

336 milligrams is the recommended dosage for a person who weighs 84 kilograms.

The recommended dosage for medications often depends on a person's weight, typically calculated at a specific milligram per kilogram ratio. For a person weighing 84 kilograms, the correct dosage would be 4 mg/kg, resulting in a total of 336 mg.

A (21) YOUR ANSWER

This dosage would imply a very low calculation of approximately 0.25 mg/kg, which is not suitable for a person weighing 84 kilograms. Such a low dosage does not align with standard medical guidelines for medication dosing based on body weight.

B (88) YOUR ANSWER

An 88 mg dosage corresponds to about 1.05 mg/kg. This is still below the recommended dosage of 4 mg/kg for an individual weighing 84 kilograms, making it insufficient for therapeutic effectiveness.

C (324) YOUR ANSWER

The 324 mg dosage approximates 3.86 mg/kg, which is slightly less than the recommended 4 mg/kg dosage. While close, it still does not meet the standard dosing guidelines for an individual of this weight.

E (2,100) YOUR ANSWER

A dosage of 2,100 mg would translate to approximately 25 mg/kg, which is excessively high and likely unsafe for a person weighing 84 kilograms. Such a dosage could lead to toxicity and serious health risks.

Conclusion

The calculation of the correct dosage based on body weight is critical in ensuring safe and effective medication administration. For an individual weighing 84 kilograms, the recommended dosage is 336 milligrams, derived from a standard of 4 mg/kg. Other options presented either fall short of or exceed the necessary dosage, highlighting the importance of accurate weight-based calculations in medical dosing guidelines.