A nurse is assigning task roles for a group of clients in a community mental health clinic. Which of the following tasks should the nurse assign to the member of the group functioning as the orienteer?

- A. This choice is incorrect because verapamil and TPN do not have a significant food and medication interaction. Verapamil is a calcium channel blocker that can lower blood pressure and heart rate, while TPN is a form of intravenous nutrition that provides calories, electrolytes, vitamins, and minerals. The nurse should monitor the client's vital signs and blood glucose levels, but there is no need to intervene to prevent an interaction.

- B. This choice is incorrect because phenytoin and milkshakes do not have a significant food and medication interaction. Phenytoin is an anticonvulsant that can decrease the absorption of some vitamins, such as folic acid and vitamin D, but milkshakes are not a major source of these nutrients. The nurse should encourage the client to eat a balanced diet and take supplements as prescribed, but there is no need to intervene to prevent an interaction.

- C. This choice is incorrect because potassium-rich foods and furosemide do not have a significant food and medication interaction. Furosemide is a loop diuretic that can cause hypokalemia, or low potassium levels, but potassium-rich foods can help prevent this complication. The nurse should monitor the client's electrolyte levels and fluid balance, but there is no need to intervene to prevent an interaction.

- D. This choice is correct because MAOIs and cheeseburgers have a significant food and medication interaction. MAOIs are antidepressants that can cause hypertensive crisis, or dangerously high blood pressure, if the client consumes foods that contain tyramine, such as aged cheeses, cured meats, fermented foods, and beer. The nurse should intervene to prevent the client from eating a cheeseburger and educate the client about avoiding tyramine-containing foods while taking MAOIs.

- A: Correct. Broccoli is a vegetable that does not contain tyramine, which can interact with phenelzine and cause a hypertensive crisis.

- B: Correct. Yogurt is a dairy product that does not contain tyramine, which can interact with phenelzine and cause a hypertensive crisis.

- C: Incorrect. Pepperoni pizza contains pepperoni, cheese, and tomato sauce, which are all sources of tyramine, which can interact with phenelzine and cause a hypertensive crisis.

- D: Cream cheese is a dairy product that contains little or no tyramine and is therefore, safe in a client taking phenelzine.

- E: Incorrect. Bologna sandwich contains bologna, bread, and mayonnaise, which are all sources of tyramine, which can interact with phenelzine and cause a hypertensive crisis.