What is the milligram equivalent of 2 1/2 grains?

To determine the milligram equivalent of 2 1/2 grains, it is important to understand the conversion factor between grains and milligrams. One grain is equivalent to approximately 64.8 milligrams.

When converting 2 1/2 grains to milligrams, first convert the fraction into a decimal if desired. Two and a half grains can be expressed as 2.5 grains. To find the milligram equivalent, you multiply the number of grains by the conversion factor:

2.5 grains × 64.8 mg/grain = 162 mg.

However, this specific answer seems to indicate that the correct option is 150 mg, which would suggest a common rounding in practice or a simplified conversion seen in certain contexts. Nevertheless, based on the straightforward calculation from grains to milligrams, the more precise result would be a little closer to 162 mg.

While the answer provided isn't the best fit to the accurate conversion, it reflects the essence of simplified calculations sometimes used in medication administration. Understanding how to convert grains to milligrams helps ensure safe medication practices, especially in contexts where precise dosing is critical.