Dialysis Technician Practice Exam

Which of the following foods is included in the high-phosphorus category?

1. Spinach

2. Carrots

3. Iceberg Lettuce

4. Brussels Sprouts

The correct answer is: Spinach

Spinach is categorized as a high-phosphorus food due to its nutrient composition. Phosphorus is a mineral that plays a crucial role in various bodily functions, including the formation of bones and teeth, energy production, and cellular function. However, for individuals with kidney disease or those on dialysis, managing phosphorus intake is vital because impaired kidneys may struggle to excrete excess phosphorus, leading to elevated levels in the blood. In the context of diet and kidney health, spinach contains a significant amount of phosphorus compared to leafy greens and vegetables that are generally lower in this mineral. While other vegetables, such as carrots, iceberg lettuce, and Brussels sprouts, also provide essential nutrients, they do not have the same high levels of phosphorus. Thus, spinach stands out in this context as a food to be mindful of for those needing to limit phosphorus intake.