Certified Nutrition Specialist (CNS) Practice Exam

In chronic kidney disease (CKD), a primary focus of nutritional diagnosis is to manage the intake of various nutrients, particularly minerals and fluids, as the kidneys' ability to filter and excrete these substances becomes impaired.

Diagnosing "inadequate fluid intake" as a common issue in CKD is not typical because patients often face restrictions on fluid intake due to the risk of fluid overload, especially as the disease progresses. This condition leads to complications such as hypertension and edema. Therefore, patients might actually be more at risk of excessive fluid intake, needing careful monitoring and guidance to avoid overconsumption.

On the other hand, inadequate mineral intake can be a common diagnosis due to dietary restrictions. For instance, CKD patients frequently need to limit their intake of phosphorus and potassium to prevent buildup in the body, leading to deficiencies.

Excessive fluid intake can also be concerning because it directly impacts blood pressure and can contribute to heart complications. Similarly, excessive mineral intake, particularly potassium and phosphorus, is a significant risk for these patients, necessitating close dietary adjustments to prevent toxicities as their kidneys cannot effectively eliminate these nutrients.

This context solidifies that "inadequate fluid intake" does not align with the typical nutritional challenges faced by individuals with chronic