A nurse is teaching a client who has a prescription for ferrous gluconate. Which of the following statements by the client indicates an understanding of the teaching?

A) Oxycodone promotes vasodilation of cranial arteries. - Vasodilation of cranial arteries is not directly related to the respiratory depression caused by oxycodone.

B) Oxycodone causes central nervous system depression. - Oxycodone, like other opioids, depresses the central nervous system, including the respiratory centers in the brainstem, leading to respiratory depression.

C) Oxycodone blocks the sodium channel suspending nerve conduction. - This statement describes the mechanism of action of local anesthetics, not opioids like oxycodone.

D) Oxycodone inhibits prostaglandin synthesis. - Oxycodone does not directly inhibit prostaglandin synthesis; this is a mechanism of action associated with nonsteroidal anti-inflammatory drugs (NSAIDs).

A. "I will avoid consuming alcoholic beverages."- Alcohol can irritate the oral mucosa and worsen mouth pain associated with stomatitis. Avoiding alcoholic beverages can help alleviate discomfort.
B. "I will consume foods that are soft or semisolid."- Soft or semisolid foods are easier to chew and swallow, reducing irritation to the oral mucosa and discomfort caused by mouth pain.
C. "I will rinse with saline every 2 hours while awake."- Rinsing with saline can help keep the oral mucosa clean and promote healing of lesions associated with stomatitis. Frequent rinsing can also provide relief from mouth pain.

D. "I will avoid taking folic acid supplements while taking this medication."- Methotrexate is a folate antagonist, and folic acid supplements are typically avoided during treatment to enhance the effectiveness of the medication. Therefore, the client should not avoid taking folic acid supplements but should follow healthcare provider instructions regarding their use.
E. "I will perform oral hygiene using a firm-bristle toothbrush."- Using a firm-bristle toothbrush can further irritate the oral mucosa and exacerbate mouth pain. Instead, the client should use a soft-bristle toothbrush or consider other gentle oral hygiene measures recommended by their healthcare provider.