Question 25

2.4 grams of active ingredient is present in 2 oz of hydrocortisone 4% cream.

To determine the amount of active ingredient in 2 oz of hydrocortisone 4% cream, we first convert ounces to grams and then calculate the percentage of the active ingredient. Since 2 oz is approximately 56.7 grams, 4% of this weight gives us 2.4 grams of hydrocortisone.

A) 0.24

This option incorrectly represents the amount of active ingredient. If we calculated 0.24 grams, it would imply that 4% of the total weight is significantly lower than what is actually present in 2 oz of cream.

B) 2.4

This is the correct answer because it accurately reflects 4% of the total weight of 2 oz (approximately 56.7 grams). By calculating 4% of 56.7 grams, we find that the active ingredient amounts to 2.4 grams.

C) 24

This option overestimates the amount of active ingredient. 24 grams would imply that the concentration of hydrocortisone is much higher than 4%, which does not align with the formulation of the cream.

D) 60

This option also significantly overstates the amount of active ingredient. A total of 60 grams would suggest an unrealistic concentration far exceeding the 4% formulation of hydrocortisone in the cream.

Conclusion

The correct answer of 2.4 grams is confirmed by the calculation of 4% of the total weight of the cream. All other options fail to accurately represent the percentage-based calculation required, either underestimating or overestimating the actual content of hydrocortisone in the cream formulation.