A client receives a prescription for IV famotidine. Which finding indicates to the nurse the medication is effective?

Choice A reason: Reduced epigastric pain indicates that the famotidine is effectively reducing gastric acid production and alleviating symptoms.Choice B reason: Decreased nighttime awakenings may be an indirect benefit but is not a direct measure of the medication's effectiveness.Choice C reason: A positive stool antigen test is not relevant to assessing the effectiveness of famotidine.Choice D reason: Loss of weight is not a direct measure of famotidine's effectiveness.