A nurse is teaching a client who has a new prescription for colchicine to treat gout. Which of the following instructions should the nurse include?

Choice A rationale:
Phenytoin is an anticonvulsant medication that is typically used long-term to control seizures. It is not a medication that can be stopped abruptly, as this can lead to the recurrence of seizures or even status epilepticus, a life-threatening condition characterized by continuous seizure activity.
The client's statement, "I'll be glad when I can stop taking this medicine," indicates a lack of understanding about the long- term nature of phenytoin therapy and the potential risks associated with stopping the medication prematurely.
Further teaching is needed to emphasize the importance of medication adherence and the potential consequences of non- adherence.

Choice B rationale:
Phenytoin can cause gingival hyperplasia (overgrowth of gum tissue), so it is important for clients taking this medication to see a dentist regularly for checkups and cleanings.
The client's statement, "I have made an appointment to see my dentist next week," indicates an understanding of this potential side effect and the need for regular dental care.

Choice C rationale:
Phenytoin has a narrow therapeutic index, meaning that there is a small difference between the effective dose and the toxic dose.
Switching brands of phenytoin can lead to changes in blood levels of the medication, which could potentially result in therapeutic failure or toxicity.
The client's statement, "I know that I cannot switch brands of this medication," indicates an understanding of this important safety consideration.

Choice D rationale:
Phenytoin can interact with many other medications, including over-the-counter medications and herbal supplements.
It is important for clients taking phenytoin to notify their doctor before taking any other medications to avoid potential drug interactions.
The client's statement, "I will notify my doctor before taking any other medications," indicates an understanding of this potential risk.

Choice A rationale:
Lymph nodes are small, bean-shaped structures that play a crucial role in the immune system. They filter lymph fluid, which carries white blood cells and other immune cells throughout the body.
When the body is fighting an infection or other immune challenge, lymph nodes often swell and become tender. This is because they are actively working to filter out pathogens and activate immune cells.
Palpation of the lymph nodes can provide valuable information about the patient's immune function. The nurse can assess for enlargement, tenderness, and mobility of the lymph nodes.
Lymph node assessment is a non-invasive, painless procedure that can be performed quickly and easily.
Choice B rationale:
Auscultation of the apical heart rate is important for assessing cardiovascular function, but it does not directly assess immune function.
While heart rate can be indirectly affected by certain immune conditions (e.g., fever), it is not a primary indicator of immune system activity.
Choice C rationale:
Palpation of the liver can provide information about liver size and consistency, but it does not directly assess immune function.
The liver plays a role in immune function by producing proteins that help fight infection, but its size and consistency do not necessarily reflect its immune activity.
Choice D rationale:
Percussion of the abdomen can be used to assess the size and location of abdominal organs, but it does not directly assess immune function.
While certain immune conditions may involve abdominal organs (e.g., splenomegaly), percussion is not a primary method for assessing immune function.