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:
Having the client point their chin upward to swallow is not a recommended action to reduce the risk of aspiration. In fact, this action can increase the risk of choking and aspiration, as it may cause food or liquids to enter the airway.
Choice B rationale:
Offering the client saltine crackers between meals is not a suitable action for reducing the risk of aspiration. Saltine crackers are dry and can be challenging to swallow for someone with dysphagia, potentially increasing the risk of aspiration.
Choice C rationale:
Thicken liquids before serving is the correct action to reduce the risk of aspiration in a client with dysphagia. Thickened liquids are easier to swallow and less likely to enter the airway, reducing the risk of aspiration pneumonia.
Choice D rationale:
Placing food on the affected side of the mouth does not address the risk of aspiration directly. Dysphagia may affect both sides of the mouth, and placing food on one side does not ensure safe swallowing and reduces the effectiveness of addressing the problem.

Choice A rationale:
Papilledema refers to swelling of the optic disc in the eye, which can occur due to increased intracranial pressure. While it may be present in cases of basilar skull fracture, it is not a reliable finding for determining the discharge of cerebrospinal fluid (CSF).
Choice B rationale:
The halo sign is a reliable finding for determining that the nasal discharge is cerebrospinal fluid. The halo sign is characterized by a ring of blood surrounded by a clear or yellowish fluid (CSF) on a dressing or tissue. This occurs because blood from the fracture mixes with the clear CSF, creating a distinct appearance.
Choice C rationale:
Racoon's eyes, also known as periorbital ecchymosis, is a term used to describe bruising around the eyes. While it can be seen in basilar skull fractures, it is not specific to cerebrospinal fluid leakage and, therefore, not reliable for identifying the nasal discharge as CSF.
Choice D rationale:
Elevated white blood cells (WBCs) in the nasal discharge can indicate infection, inflammation, or an immune response. However, it does not provide direct evidence that the discharge is cerebrospinal fluid, so this is not a reliable finding for determining the nature of the nasal discharge in this context.