A client diagnosed with seizures is prescribed phenytoin. Which medication instruction should the practical nurse (PN) reinforce to this client?

Correct Answer: D

Rationale: The correct answer is to reinforce the instruction to brush and floss teeth daily. Phenytoin therapy can lead to gingival hyperplasia (gum disease), which can be prevented by maintaining good oral hygiene practices such as brushing and flossing daily.

Correct Answer: A

Rationale: The correct answer is A: Dry mouth. Tiotropium, a commonly prescribed medication for COPD, can cause dry mouth as a side effect. While it may not be severe, clients should report it if it becomes bothersome. Blurred vision, nausea, and tachycardia are not typically associated with tiotropium use in the context of COPD.

Correct Answer: D

Rationale: Clonidine is an antihypertensive agent that works centrally to reduce blood pressure. A significant decrease in blood pressure, such as changing from 180/120 to 140/70 mm Hg, indicates that the medication is effectively managing hypertension. Monitoring blood pressure levels is crucial in assessing the response to clonidine therapy.

Correct Answer: A

Rationale: The correct answer is A: Increased risk of bleeding. Warfarin is an anticoagulant medication that works by prolonging the time it takes for blood to clot. Therefore, a potential adverse effect of warfarin is an increased risk of bleeding. It is crucial for the nurse to monitor the client for signs of bleeding, such as easy bruising, prolonged bleeding from cuts, nosebleeds, or blood in the urine or stool. Monitoring for these signs is essential to prevent serious complications associated with excessive bleeding.

Correct Answer: B

Rationale: The correct action for the nurse to take when a client reports orange urine after taking rifampin is to inform the client that this change is not harmful. Rifampin is known to cause orange discoloration of urine, which is a harmless side effect. There is no need to notify the health care provider as this is an expected outcome. Monitoring creatinine levels or assessing for nephrotoxicity is unnecessary in this situation, as rifampin does not typically cause kidney damage.

Correct Answer: B

Rationale: Carbidopa-levodopa increases the amount of levodopa to the CNS, providing more dopamine to the brain. Increased dopamine levels help alleviate Parkinson's symptoms such as tremors, involuntary movements, and gait abnormalities.

Correct Answer: D

Rationale: Administering iodine one hour before PTU is crucial to ensure proper absorption and effectiveness of PTU. This timing helps optimize the therapeutic benefits of PTU by allowing it to be absorbed efficiently without interference from iodine, ultimately leading to better treatment outcomes for the patient.

Correct Answer: A

Rationale: When a client with a history of deep vein thrombosis is prescribed rivaroxaban, the nurse should monitor for signs of bleeding as rivaroxaban increases the risk of bleeding. Common adverse effects of rivaroxaban include bleeding events, such as easy bruising, prolonged bleeding from cuts, or blood in the urine or stool. It is crucial for the nurse to assess for these signs to prevent complications and ensure the client's safety.

Correct Answer: D

Rationale: In hepatic encephalopathy, the goal of lactulose therapy is to reduce blood ammonia levels by promoting its excretion in the stool. Therefore, monitoring serum electrolytes and ammonia levels is crucial to assess the effectiveness of lactulose in lowering ammonia levels and improving the client's condition.