Which term for slow loss of kidney function over time is abbreviated CRF?

• A. Acute Kidney Injury - AKI
• B. End Stage Renal Disease
• C. Acute Renal Failure - ARF
• D. Chronic Renal Failure - CRF

Answer: (D)

The situation described is a gradual, long-term decline in kidney function. That slow progression is what “chronic” signals, so the term aligned with this description is Chronic Renal Failure, abbreviated CRF.

In contrast, the rapid decline seen over hours to days is Acute Kidney Injury (AKI) or Acute Renal Failure (ARF), not a slow process. End Stage Renal Disease refers to the final, irreversible stage of kidney disease, not the ongoing slow loss itself. So the correct match for slow loss over time is Chronic Renal Failure (CRF). (Note: modern practice often uses chronic kidney disease, CKD, but CRF is the term corresponding to the abbreviation.)