Final answer:
The correct statement made by the patient that shows they understand the orlistat treatment guidelines is that they would need to take a multivitamin containing fat-soluble vitamins every day.
Step-by-step explanation:
The patient's statement indicating understanding of the drug therapy with orlistat [Xenical] is: "I will need to take a multivitamin containing fat-soluble vitamins every day." This is because orlistat inhibits the absorption of dietary fats, which can lead to a deficiency in fat-soluble vitamins such as A, D, E, and K. Supplementing these is important to prevent deficiencies while on the medication. Orlistat may cause fatty or oily stools or fecal incontinence as a side effect, but this is not usually a reason to stop taking the drug unless directed by a healthcare provider. Dark urine and light-colored stools may indicate liver issues, which are not typical side effects of orlistat. Finally, orlistat is not indicated specifically for managing blood pressure or glucose levels; it is used for weight loss. Stopping the medication just because blood pressure and serum glucose have stabilized does not align with the typical guidance for orlistat use.