Ace the Certified Nephrology Nurse 2025 Exam – Dive into Dialysis Mastery!

The correct answer is that apples and lemons are categorized as low potassium fruits. In the context of nephrology and managing potassium levels, dietary choices are crucial for patients, particularly those with kidney disease, who may need to limit their potassium intake.

Apples and lemons are known to have relatively low potassium content compared to other fruits. This makes them suitable options for those who need to monitor their potassium levels closely. For example, a medium apple contains about 158 mg of potassium, while a lemon has around 80 mg, both of which are considered low in the context of dietary potassium restriction.

Other fruits such as bananas, mangoes, and oranges, on the other hand, contain much higher levels of potassium. A medium banana can have over 400 mg, while mangoes and oranges also fall into the higher potassium category. This significant difference in potassium content is critical for patients who have to manage their intake for health reasons, such as hyperkalemia or chronic kidney disease. Thus, apples and lemons provide a heart-healthy and safe option for those needing to limit potassium in their diets, aligning with dietary recommendations.