A nurse is teaching a client who has a new prescription for lovastatin. Which of the following diagnostic tests should the nurse instruct the client to complete before starting the medication?

Choice A rationale:
Increasing the intake of high-fiber foods is not relevant to addressing the client's dry mouth caused by benztropine. High-fiber foods are commonly recommended for managing constipation, a symptom often associated with Parkinson's disease, but it does not address the issue of dry mouth.
Choice B rationale:
Chewing sugarless gum can stimulate saliva production and help alleviate dry mouth. However, it is not the most appropriate recommendation for a client taking benztropine, as gum-chewing may interfere with the effectiveness of the medication or exacerbate other symptoms.
Choice C rationale:
Moistening the mouth with lemon-glycerin swabs is the most suitable recommendation for a client experiencing dry mouth due to benztropine. Lemon-glycerin swabs can help increase saliva production and provide relief from the discomfort of dry mouth without interfering with the medication's efficacy.
Choice D rationale:
Rinsing the mouth with nystatin is used to treat fungal infections in the mouth (oral thrush) and is not relevant to address the side effect of dry mouth caused by benztropine.

Choice A rationale:

A three-prong plug attached to the electrical cord of the client's bed is not a safety hazard. It is a standard plug type used in many electrical devices and poses no immediate danger if properly installed.

Choice B rationale:

Inserting a protective cover into an unused outlet is actually a safety measure to prevent electrical accidents. It is not a hazard but a recommended practice.

Choice C rationale:

Plugging an IV pump into an outlet near a sink is a safety hazard. Water and electricity are a dangerous combination, and any spill or leakage around the outlet could lead to electrical shock or damage to the equipment.

Choice D rationale:

Coiling and securing an electrical cord to the floor can be a potential tripping hazard, but it is not as hazardous as having an electrical device near a sink. Tripping hazards can cause falls, while the combination of water and electricity is more likely to cause serious injuries.