Which finding defines severe chronic kidney disease?

Which finding defines severe chronic kidney disease?

• A. eGFR 32 mL/min/1.73 m2
• B. Urine albumin-to-creatinine ratio 250 mg/g
• C. Potassium 4.0 mEq/L
• D. Hemoglobin 9.5 g/dL

Answer: (D)

Low erythropoietin production by the kidneys leads to anemia in chronic kidney disease, and the degree of anemia often reflects how advanced the disease is. A hemoglobin of 9.5 g/dL indicates a clinically significant, CKD-related anemia, which is a major marker of severe kidney disease. This makes it the finding that best signals severity among the options. The other measurements show CKD presence or activity but not the same level of severity: an eGFR in the 30s signifies CKD but not necessarily severe disease; a urine albumin-to-creatinine ratio around 250 mg/g shows notable but not defining albuminuria; a potassium level of 4.0 mEq/L is normal and does not indicate severity.

Low erythropoietin production by the kidneys leads to anemia in chronic kidney disease, and the degree of anemia often reflects how advanced the disease is. A hemoglobin of 9.5 g/dL indicates a clinically significant, CKD-related anemia, which is a major marker of severe kidney disease. This makes it the finding that best signals severity among the options.

The other measurements show CKD presence or activity but not the same level of severity: an eGFR in the 30s signifies CKD but not necessarily severe disease; a urine albumin-to-creatinine ratio around 250 mg/g shows notable but not defining albuminuria; a potassium level of 4.0 mEq/L is normal and does not indicate severity.